- vcf-midatlantic - lists.vcfed.org

consignment system questions
by James Murphy 23 Mar '24

23 Mar '24

Hello, Can someone provide some "more basic" basic information about the consignment system? Is it possible to browse items? Are items required to be in the consignment system before they can be sold at the meet? What about haggling? I guess I thought this was just an index of items for us to peruse but now I'm not sure. Thanks!

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VCF's IBM 1130 is on its way to Florida!
by Jeffrey Brace 22 Mar '24

22 Mar '24

After a long wait, VCF's IBM 1130 is on its way to Florida to be repaired by Carl Claunch. Courtesy of Ryan Schiff and Ryan Burke who will be driving our machine down there to drop it off while picking up their newly repaired 1130. Jeff Brace

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Re: [vcf-midatlantic] Thicknet, was: Cisco 2503 available
by VAXman＠tmesis.org 21 Mar '24

21 Mar '24

"Martin A. Flynn via vcf-midatlantic" <vcf-midatlantic(a)lists.vcfed.org> writes: > >On 3/21/2024 9:01 AM, Jonathan Chapman via vcf-midatlantic wrote: >> If >anyone wants to tackle adding thicknet networking to the museum space, >there is a Cisco 2503 router with a DA-15 AUI port that is up for grabs. >> I still have 1000+ feet of brand new Belden 89880 thicknet cable on >the spool for when someone's ready for this! > >There are six (6) Cambridge CPFI-ETN-22 N connectors for 89880 in the >Makerspace should anyone avail themselves of Jonathan's cable as part of >an exhibit build out.... FWIW, in the '80s, I strung 10base5 etherpipe all over the Camp Evans campus.

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New VCF Consignment system is up and running!
by Jeffrey Brace 20 Mar '24

20 Mar '24

https://nexopos.vcfed.org/ Enjoy! Jeff Brace Vintage Computer Festival East Showrunner

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Repair Workshop 3/23-24, 2024 Info
by Jeffrey Brace 20 Mar '24

20 Mar '24

Click here to sign up. <https://docs.google.com/spreadsheets/d/1-ncMX3hx72vnAsMttYW3UNU6kMX2z_49-NH…> *WHERE:* 1) CDL's Hackerspace and classroom in building 9059 (Most people use this one) 2) 9032-A is also available. *TIME:*Saturday START time == 10 A.M. END time == 11PM. Sunday START time == 10 A.M. and END == 5 P.M. *COST:* $15 per person, per day. $25 per night for those wanting to stay overnight in the visitor center's bunk beds *OVERNIGHT*: Bring your own pillow, blankets, soap etc. We provide a bed frame and an uncovered mattress. There are showers and a kitchen for your use. - You can send: * Via PayPal to @VintageComputerFed or paypal(a)vcfed.org. * Venmo: @VintageComputerFederation * Cash, credit card, Apple Pay, etc. in person. We have a Square Device. *EQUIPMENT:* - VCF will provide a table and you can use any available electrical outlet. - Bring your own tools, power strips, power cords, and supplies etc. - If you need particular tools that you don't own or particular parts, please let others know that you need something. They may have what you need. Let them know ahead of time. - Let everyone know what project you are working on ahead of time to inspire collaboration. *DRINKS*: You should bring your own. We have a refrigerator in CDL to keep them cold. VCF will buy some water and soft drinks for member use. *FOOD*: *Saturday afternoon*: Everyone is on their own. *Saturday Night Dinner at around 7PM*: We often go out to dinner together. MJ's in Tinton Falls seems the new prefered spot. *Sunday Morning*: We usually meet at a diner around 9AM *Sunday Afternoon*: Everyone is on their own. *PARKING:* Park in the main parking lot, unless you are unloading. Don't park on the lawn. Also park on where are "no parking signs" There is now a dedicated fire lane. *PHONE:* (732) 722 - 5015 *EMAIL: *repairworkshops(a)vcfed.org Have fun everyone! :-D Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Hotel Block #3 - Red Roof Inn
by Jeffrey Brace 19 Mar '24

19 Mar '24

I have opened up another hotel block: Red Roof Inn 11 Centre Plaza Eatontown, NJ 20% discount. Call 732-389-4646 before the cut off date 03/31/2024 and book your room under the Vintage Computer Festival East group name. Take care! Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Re: [vcf-midatlantic] VCF East 2023 YouTube videos and articles
by Bob Flanders 18 Mar '24

18 Mar '24

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Semi-OT: MAX180 Evaluation Kit ROM/Diskette Image
by Jonathan Chapman 17 Mar '24

17 Mar '24

All, I'm looking for an image of the ROM or companion diskette for the Maxim MAX180 Evaluation Kit (MAX180EVKIT). I've got one that has a custom application ROM in it. Thanks, Jonathan

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Re: [vcf-midatlantic] KC Surplus Sale Update
by Bill Degnan 17 Mar '24

17 Mar '24

Andy Diller came to help out yesterday. There is a lot to manage. Here is the central info page that will be updated as info changes. https://www.kennettclassic.com/surplus-sale-starts-3-19/ b On Sun, Mar 17, 2024 at 3:17 PM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > That is exactly what I was asking last week, but I got a slightly snarky > answer. > > Sent from: > My extremely complicated, hand held electronic device. > > > On Mar 17, 2024, at 1:48 PM, Bill Degnan via vcf-midatlantic < > vcf-midatlantic(a)lists.vcfed.org> wrote: > > > > Prices coming very soon. There will be typos, tha is for figuring it > out > > what we meant. > > > >> On Sun, Mar 17, 2024, 1:14 PM m simons via vcf-midatlantic < > >> vcf-midatlantic(a)lists.vcfed.org> wrote: > >> > >> I see the new photos but don't see the prices. Will the price list be > >> posted prior to the sales going live? I want to see if I can actually > >> afford the thing I know I probably can't afford and whether I should be > >> tuned into the online sales opening up or not! > >> > >> BTW, in the file names you have something listed as "Apple Mac IIC" > >> rather than "Apple Mac LC" > >> > >> thanks > >> Michael Simons > >> > >> On Sunday, March 17, 2024 at 11:26:18 AM EDT, Bill Degnan via > >> vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> wrote: > >> > >> All new photos and updates: > >> https://www.kennettclassic.com/surplus-sale-starts-3-19/ > >> > >> Online ordering will start 3/19 at midnight. Online ordering will be > >> suspended whenever the store is opening to prevent sniping while > customers > >> are in the store. Items purchased online must be picked up by 4/19. > >> > >> Bill > >> > >> > >

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Re: [vcf-midatlantic] KC Surplus Sale Update
by Bill Degnan 17 Mar '24

17 Mar '24

Prices coming very soon. There will be typos, tha is for figuring it out what we meant. On Sun, Mar 17, 2024, 1:14 PM m simons via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > I see the new photos but don't see the prices. Will the price list be > posted prior to the sales going live? I want to see if I can actually > afford the thing I know I probably can't afford and whether I should be > tuned into the online sales opening up or not! > > BTW, in the file names you have something listed as "Apple Mac IIC" > rather than "Apple Mac LC" > > thanks > Michael Simons > > On Sunday, March 17, 2024 at 11:26:18 AM EDT, Bill Degnan via > vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> wrote: > > All new photos and updates: > https://www.kennettclassic.com/surplus-sale-starts-3-19/ > > Online ordering will start 3/19 at midnight. Online ordering will be > suspended whenever the store is opening to prevent sniping while customers > are in the store. Items purchased online must be picked up by 4/19. > > Bill > >

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KC Surplus Sale Update
by Bill Degnan 17 Mar '24

17 Mar '24

All new photos and updates: https://www.kennettclassic.com/surplus-sale-starts-3-19/ Online ordering will start 3/19 at midnight. Online ordering will be suspended whenever the store is opening to prevent sniping while customers are in the store. Items purchased online must be picked up by 4/19. Bill

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Next Repair Workshop March 23 & 24
by Jeffrey Brace 16 Mar '24

16 Mar '24

Sign up is here: https://docs.google.com/spreadsheets/d/1-ncMX3hx72vnAsMttYW3UNU6kMX2z_49-NH… Take care! Jeff Brace VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Kennett Classic Will NOT be open this weekend, internal only.
by Bill Degnan 15 Mar '24

15 Mar '24

Kennett Classic Will NOT be open this weekend, internal only. Earlier it was thought we could have a surplus sale preview this weekend, but we found that to be unworkable. The surplus sale opens with special hours at 7PM on Tuesday 3/19/24. Please visit kennettclassic.com for an up-to-date status of hours and news. We will activate online ordering prior to going live on Tuesday. This will give people the ability to buy now and pick up later. https://kennettclassic.com/surplus/ - the latest inventory https://kennettclassic.com/contact.cfm - how to sign up for the mailing list. Thanks for your patience. Bill

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online before the Internet
by Jeffrey Jonas 15 Mar '24

15 Mar '24

Sorry if this video was already discovered: https://youtu.be/1W_yfq1CLwY PlayNet: in 1983 - The Roots of AOL Miles Kurland In 1983 I worked at a tiny startup called PlayNet that was developing a radical concept: a network for personal computers to support gaming and socializing. Before going under, we licensed our technology to a competitor, QuantumLink, who turned it into something called "AOL". So, out of humble beginnings...

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Anyone want to split their hotel room for VCF-East?
by Ken 15 Mar '24

15 Mar '24

If anyone got a room with an extra bed, and wants to split the cost, I'd be thrilled to share it. (...and if more hotel blocks open up, or if anyone has a tip on a good other option, I'd love to hear!) Can't wait, can't wait... - Ken

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Need speaker assistant for VCF East 2024
by Jeffrey Brace 13 Mar '24

13 Mar '24

I need someone who will introduce speakers, move around the room to make sure the audience speaks into the microphone and walk them to the breakout room after their talk to continue questions with the audience. You don't have to do all the talks. Just what you can. I have one person so far committed to two talks. Let me know. Thanks! Jeff Brace

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Surplus Sale at Kennett Classic Update
by Bill Degnan 12 Mar '24

12 Mar '24

More hardware photos added. Sale starts March 19th 9AM. We've filled the shelves with vintage computers for sale. Just like a computer stores of old, walk in and buy a computer, ask questions and get knowledgeable answers. https://www.kennettclassic.com/surplus/ Join the kennettclassic.com mailing list to be kept up-to-date (via contact form). An update will be sent later tonight so if you want to get on the list do it soon! Proceeds benefit Kennett Classic a 501(c)(3) charity. Bill

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Kennett Classic Surplus Sale Starting Soon
by Bill Degnan 12 Mar '24

12 Mar '24

https://www.kennettclassic.com/surplus/ - this is a sampling of interesting stuff, not a complete list of all items. New things are coming in daily, as space opens on the shelves. We're ready to re-open with three rooms full of vintage computers, like an old-fashioned computer store. Walk in pick what you want off the shelf and buy it on the spot. Most items have been cleaned and tested as to their operational status. Many are fully operational or very close. Also have parts, cables, etc. OPENS OFFICIALLY 3/19, but soft open is later this week. If you want to be on the mailing list submit a contact form through kennettclassic.com Bill Degnan

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Re: [vcf-midatlantic] AT&T 6386 WGS, Olivetti 380 computer, power supply schematic needed
by CJ Reha 10 Mar '24

10 Mar '24

Something else I just thought of - your messages imply the computer was working beforehand and just recently failed. This is a dumb question, but have you checked the voltage rails on the board for shorts? I have had at least one power supply come in for repair, and work perfectly on the bench - the customer's computer had a shorted tantalum or something on the motherboard masking as a bad power supply. I've been bit that way more times than I'd like to admit as well. Regards, CJ On Sun, Mar 10, 2024 at 1:30 PM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > Good afternoon > > I believe I have posted before with a question about a keyboard for this > computer (386-20), > but now I have a question about a schematic diagram for the power supply. > I am looking to repair the power supply which is currently dead, outputs > about .5 V -.5 V and that’s it. > Nothing obviously open or shorted. Somebody did have their hands in it > prior to me, replacing or at least soldering various transistors. > > My issue is: > I would like to find a schematic diagram for this so that I can do > repairs myself. > Or at the very least, connect an AT power supply or hook up an ATX power > supply to get the computer running. > > I would need to know what voltages besides the obvious 12 V, 5 V , -12 V > ,-5v needed to run this system. > > If anyone has experience performing such a task, > Please contact me directly if necessary. > > I won’t bring it to the workshop unless I can find someone who knows, and > I have a schematic diagram in hand. > > Thank you > Mike Rosen > > > Sent from: > My extremely complicated, hand held electronic device. >

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Re: [vcf-midatlantic] AT&T 6386 WGS, Olivetti 380 computer, power supply schematic needed
by CJ Reha 10 Mar '24

10 Mar '24

I'm not aware of any extant schematics or service manuals for that particular machine, but I can perhaps offer some general guidance if it would be helpful to you. A lot of those PC power supplies are pretty similar in topology and I've fixed a whole crap ton of them. Question - does it try to start? As in, can you hear it go "tick" and see the fan twitch or things hooked up to it try to light up? A very common problem in this era of supply (and power supplies in general from 40yrs ago) is the output caps going bad, so the supply can't properly regulate and shuts itself down. Also, lot of them use a small value cap (maybe 47uF or so) on the primary to "kick start" the switching circuit; it commonly goes bad, and will cause a no start condition. This sometimes manifests in a situation where the supply only starts after being plugged in for a long time (leaky cap slowly charging up). The way you talk about output voltages makes me assume the fuse is probably OK and it's at least trying to do something, so hopefully no blown up switching transistors or anything that would be a bigger headache to diagnose. Let me know if this is helpful! Regards, CJ On Sun, Mar 10, 2024 at 1:30 PM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > Good afternoon > > I believe I have posted before with a question about a keyboard for this > computer (386-20), > but now I have a question about a schematic diagram for the power supply. > I am looking to repair the power supply which is currently dead, outputs > about .5 V -.5 V and that’s it. > Nothing obviously open or shorted. Somebody did have their hands in it > prior to me, replacing or at least soldering various transistors. > > My issue is: > I would like to find a schematic diagram for this so that I can do > repairs myself. > Or at the very least, connect an AT power supply or hook up an ATX power > supply to get the computer running. > > I would need to know what voltages besides the obvious 12 V, 5 V , -12 V > ,-5v needed to run this system. > > If anyone has experience performing such a task, > Please contact me directly if necessary. > > I won’t bring it to the workshop unless I can find someone who knows, and > I have a schematic diagram in hand. > > Thank you > Mike Rosen > > > Sent from: > My extremely complicated, hand held electronic device. >

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Hakko
by Martin A. Flynn 10 Mar '24

10 Mar '24

I was introduced to one of the engineers from Hakko and had an opportunity to talk up CDL, VCF, and to a lesser degree InfoAge (IE the five minute elevator speech that we all should be ready for) Out of that conversation: So, are there any legacy chips that CDL does not have hot air rework nozzles for ? Martin Flynn

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Not quite O/T....
by Martin A. Flynn 10 Mar '24

10 Mar '24

Background: With the approval of InfoAge management, CDL and it's friends have successful applied for an LPFM license for Camp Evans. The new station is WALL-LP, and will be found at 103.9 MHz To support this, CDL has acquired all of the hardware, including the transmitter, EAS decoder, and a broadcast phone system. We have built a gateway using audiocodes hardware to convert the existing SIP trunking to ISDN-BRI to support the broadcast phone system. So if you want to demo those Livingston Portmasters or other ISDN kit at VCF-E , CDL has the tech you need. Martin

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AT&T 6386 WGS, Olivetti 380 computer, power supply schematic needed
by Sentrytv 10 Mar '24

10 Mar '24

Good afternoon I believe I have posted before with a question about a keyboard for this computer (386-20), but now I have a question about a schematic diagram for the power supply. I am looking to repair the power supply which is currently dead, outputs about .5 V -.5 V and that’s it. Nothing obviously open or shorted. Somebody did have their hands in it prior to me, replacing or at least soldering various transistors. My issue is: I would like to find a schematic diagram for this so that I can do repairs myself. Or at the very least, connect an AT power supply or hook up an ATX power supply to get the computer running. I would need to know what voltages besides the obvious 12 V, 5 V , -12 V ,-5v needed to run this system. If anyone has experience performing such a task, Please contact me directly if necessary. I won’t bring it to the workshop unless I can find someone who knows, and I have a schematic diagram in hand. Thank you Mike Rosen Sent from: My extremely complicated, hand held electronic device.

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Museum: PDP-8 and beyond. Come see it at VCF East
by Douglas Crawford 10 Mar '24

10 Mar '24

THANKS SO MUCH Dave Gesswein for coming to the repair event and lending your PDP-8 expertise to us again for the weekend! The progress you made this weekend is so exciting and encouraging. For those fairly new to VCF MidAtlantic, our Straight-8 has local NJ history with the The Resistors (google it) and came to use in "barn storage" condition. Dave massively restored this machine and continues to lovingly keep it going. These fault discoveries and repairs are wonderful as we leverage this machine pretty hard as the machine is the oldest computer that we can demonstrate at-will anytime in the museum. It's one of two that we can show how front panels work- the other is the HP 1000 minicomputer. Its the only one in octal. (The UNIVAC 1219 is only demo'd at special events.) We now have several demonstration options on the PDP-8: - A "cylon" mode light demo - Create a message on ASR 33 paper tape in readable font - Math demo on the ASR 33 TTY - Music played to a transistor radio via EMI. - Loading a program from paper tape. The programs, including the tape loader, are kept in core memory. Great stuff! We are now trying to decide to demo with the A/D board. There are more plans for DEC restorations in the near term including a 8e & PDP-11 restorations on the short term. These are likely going to run even more impressive demos. On the longer term we'll have much more DEC in the bigger museum space. A year has been spent researching and putting in place thoughtfully selected and documented software demos on all the working microcomputers. This pushing us towards an all new museum experience as we become a "must see" computing history location on the east coast for the general public, STEM, technology college students, and tech industry professional visitors. -- Douglas Crawford VCF Mid-Atlantic Museum Mgr InfoAge Science & History Museums 2201 Marconi Road Wall, NJ 07719

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Workshop results
by David Gesswein 10 Mar '24

10 Mar '24

Worked on straight 8. Reported problem was toggled in RIM loader wouldn't load the BIN loader tape. Verified issue was still occurring. Since we knew we had issues with connection to cards from last workshop cleaned all the processor cards edge fingers and backplane connector using paper/paper towel with contact cleaner. Battled them during restoration of the machine was 9 years ago due to storage conditions. Didn't change symptoms so single stepped through the loader. Found the RTL (Rotate Twice Left) instruction didn't do anything. Traced it to bad transistor in R603 pulse amplifier in PB19. With transistor replaced and after figuring out I loaded the paper tape backwards the machine worked. Processor sensitivity to motion seemed fixed and running finger down cards also didn't cause crash. Memory side was still sensitive so cleaned those also. Luck didn't hold so memory was non functional after cleaning. Tracing signals with scope found timing pulses missing from W300 delay line board. Inspection found cracked solder joints on both of the board. The delay lines are too tall so get pulled on when inserting or removing boards. Think that cracked joints were present and got worse when cards removed for cleaning. After resoldering Still not working. More probing and found one signal for write was not being generated. Inspected transistors on the W300 generating it and noticed one transistor lead was all rusty. Poked it and it disintegrated. With transistor replaced machine now worked. Ran diagnostic set and reloaded demos and declared ready to go. Hopefully the problems on the W300 was causing some of the occasional flaky behavior. All board cleaned except sense amplifier boards that had additional connections. Verified moving them didn't cause crashes. The boards plugged into the memory box also weren't cleaned since they are gold to gold. Also didn't clean front panel cable boards. If I was able to accurate count that high I cleaned 227 edge and backplane connectors. Each has 18 contacts. We discussed enabling the 12 bit A/D that was installed in the machine when we got it. My memory was that wire(s) needed to be removed from the backplane to enable when I looked at it years ago. Maintenance manual says only cards need to be installed. Decision was to get it working removing wires if needed but I finished work on machine at 4pm Sunday so decided not a good time to mess further. A/D can convert with 6 to 12 bits accuracy taking 7.6 to 56.6 microseconds. Input is 0 to -10V. We discussed some what demo to use that would be of interest to the public but not too gimmicky. Still thinking about it. Have Teletype where we can print results or text graph.

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VCF East 2024 - Update #3 livestream 3/9/2024 at 6:30PM EST
by Jeffrey Brace 09 Mar '24

09 Mar '24

Livestream will be here: https://www.youtube.com/live/myVo0ujf3SE?si=p-F9IQEa_CEkLhdT Tonight 3/9/2024 at 6:30PM EST. Information will be posted to website tomorrow: https://vcfed.org/2024/03/09/vcf-east-2024-update-3/ Take care! Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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ADM3a parts at System Source March Workshop...
by Herbert Johnson 08 Mar '24

08 Mar '24

> Mounting hardware - these mounting "ears" and band were taken from a > Ball CRT with a broken neck. Could be used to mount a different CRT in > an ADM3a. Just a caution on that band - *do not remove band from an intact CRT*. That metal band provides tension on the CRT against the vacuum inside versus 15 pounds per square inch air pressure outside. Yeah, 15 pounds per inch. If an un-banded intact CRT is struck and shatters, those glass shards could be propelled like a glass grenade. Most CRTs break at the neck, or the very tip at the neck. The neck is thin glass. That narrow opening slows and limits the airflow to *into* the CRT which otherwise has very thick glass. These CRTs were designed decades ago with safety in mind. A lot of small terminal and TV CRT's have a band and screw-mounts. There's no need to fuss with that band. Reattach some other kind of "ears" if needed for mounting in another TV or CRT. But I've taken TV CRTs and popped them right into ADM3A's using the same ears. regards, Herb Johnson -- Herbert R. Johnson, New Jersey USA https://www.retrotechnology.com OR .net preserve, recover, restore 1970's computing email: hjohnson AT retrotechnology DOT com or try later herbjohnson AT comcast DOT net

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Marriott VCF-East Hotel Block is Full!
by Chris Fala 08 Mar '24

08 Mar '24

I just noticed that this is no longer available. I should have reserved it two days ago when I had the chance, but I hesitated. If anyone cancels and frees up a room, please let me know.

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ADM3a parts at System Source March Workshop...
by William Sudbrink 08 Mar '24

08 Mar '24

Hi, I will be at the System Source Workshop on March 30,31. I will be bringing a bunch of ADM3a parts, including: (Names are to help identify pictures, web site below) Chassis1 - this blue chassis is an original, serial number 6961 with the 115 volt transformer. Chassis2 - this blue chassis is a type 2 (with the extra venting and cardboard interior), also 115 volts. Chassis3 - this brown chassis is a late type 2. It has no speaker (the speaker was soldered to the mainboard in late type 2). This is a 230 volt transformer unit. Its fuse holder and switch were donated to 115 volt machines a long time ago. Otherwise complete. Clean board - this mainboard has no keycaps but is otherwise physically complete and in good condition. It powers up to a cleared screen with a cursor but shows no activity on key presses. Note that the key switches are present on the board. Dirty board - this mainboard has seen better days. There is some light corrosion on some chip pins and component leads. It has some but not all keycaps. Definitely does not work as it stands. I got it this way and only took it for the lower case ROM which is being used elsewhere. Good monitor - well, good in that it works and has no visible burn in. But... it has terrible cataracts. It has not, fortunately, started leaking. Complete with driver board. Zenith monitor - Has a little screen burn and a couple of scrapes on the glass. I have no compatible driver board for this monitor. Mounting hardware - these mounting "ears" and band were taken from a Ball CRT with a broken neck. Could be used to mount a different CRT in an ADM3a. Driver1 - This is a complete driver board for a Ball CRT. Unfortunately, the anode cap was smashed, but I am including a replacement that will need to be installed. Driver2 - This CRT driver board is incomplete. It has had its HV transformer taken. I _think_ this is also for a Ball CRT but it is different from driver1. Could be useful for repairs. Bracket for mounting the HV transformer is included. Pictures at: http://wsudbrink.dyndns.org:8080/images/adm3a/ Finally I, of course, would like some money for this stuff but more importantly, I do not want to take any of it home with me! I will deal and if it gets late in the day and you're nice, you may take it home for free. Bill Sudbrink -- This email has been checked for viruses by Avast antivirus software. www.avast.com

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VCF East 2024 Speaker Schedule is up!
by Jeffrey Brace 08 Mar '24

08 Mar '24

I don't expect any more changes, so the following is the speaker schedule for VCF East 2024 Friday Schedule <https://vcfed.org/vcf-east-friday-schedule/> Saturday Schedule <https://vcfed.org/vcf-east-saturday-schedule/> Sunday Schedule <https://vcfed.org/vcf-east-sunday-schedule/> Let me know if there are any typos! Jeff Brace Vintage Computer Festival East Showrunner

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Visual 50 terminal troubleshooting
by William Sudbrink 04 Mar '24

04 Mar '24

I have a Visual 50 terminal that I am now troubleshooting. I got it in the late 1980s and it worked fine until 1995. I can't find a good schematic for it or ROM images. Its symptom is that it powers up to continual beep (solid tone, not repeated beeps) with a cursor on the screen. This is not in the troubleshooting table of the manual that I have. I know the keyboard is capacitive foam pads. I was hoping that was the trouble, but it is not. I disassembled the keyboard and removed the old pads, replacing a few with some spares I had from SOL20 repairs. Has anyone corrected this problem before? I suspect that the EPROMs are going. Thanks, Bill Sudbrink -- This email has been checked for viruses by Avast antivirus software. www.avast.com

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Fwd: Action required: Update your Trello Workspace by April 8, 2024
by Ian Litchfield 04 Mar '24

04 Mar '24

How many have access to our Trello? Looks like Trello is limiting collaboration on free accounts. -Ian L. ---------- Forwarded message --------- From: Trello <do-not-reply(a)trello.com> Date: Mon, Mar 4, 2024 at 17:58 Subject: Action required: Update your Trello Workspace by April 8, 2024 To: <kd2ixl(a)gmail.com> Free Trello Workspaces will be limited to 10 collaborators starting April 8, 2024 A few changes are coming to your free Workspace, VCFed Workspace. Free Workspaces will soon be limited to 10 collaborators, which includes members, guests, and pending invitations. This workspace currently has 10 or more collaborators. - On April 8, 2024, in free Workspaces at or over the limit, you’ll only be able to share boards with current Workspace collaborators. - On May 20, 2024, in free Workspaces over the limit, boards will become view only. To see and manage Workspace collaborators, including members, guests, and pending invitations, go to Workspace settings. Go to Workspace settings <https://trello.com/email/track?idMember=64e558c23e50dbeb4b2d12ae&continueUr…> You're getting an extended 30-day free trial To help with this change, on April 8, 2024 this Workspace will be eligible for an extended, 30-day free trial of Trello Premium, with no credit card required. Trello Standard and Premium Workspaces can have unlimited collaborators.

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OT: Questions on getting help with my Rigol 1104Z+?
by Neil Cherry 04 Mar '24

04 Mar '24

I'm not asking that anyone here can help, but do you know of forums that I can drop into to ask about the Rigol 'scope. I'm finding a lot of weird this (like the serial decode changes if you change the time base ???). -- Linux Home Automation Neil Cherry kd2zrq(a)linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies KD2ZRQ

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Slightly OT / Telco Intercept messages
by Martin A. Flynn 04 Mar '24

04 Mar '24

Working on the project that appends a Badot message at 45.5 Baud for a telco intercept announcement: <BELLCORE VACANT NUMBER SIT TONE> "We're sorry - Your call cannot be completed as dialed. Please check the number and try your call again. 4 second pause <BELLCORE VACANT NUMBER SIT TONE>"We're sorry - Your call cannot be completed as dialed. Please check the number and try your call again. 4 second pause The following tones are for the hearing impaired <inset same message in 45.5 Baud Badot> Here's the question - anyone have terminal software for a Ultratec Intelemodem IT-2 ?

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Green bar paper?
by W2HX 04 Mar '24

04 Mar '24

Anyone have a cheap source of the wide 14 7/8 tractor fed paper? One or two boxes of 2500+ sheets would last me a long time. Thanks Eugene Sent from Nine<http://www.9folders.com/>

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Great repair workshop! Mar 2 & 3, 2024
by Jeffrey Brace 03 Mar '24

03 Mar '24

So a few good things at the repair workshop: 1) A few new people joined for the first time. 2) A few recently joined people came back. 3) Lots of stuff was repaired. 4) Bunk bed situation wasn't as bad as I was expecting and it all worked out for everyone. 5) No damage to their brand new workbenches, but clean up by myself only took an hour. Maybe I'll get more help next time. 6) It was great weather today! Yesterday not so much. Next repair workshop is Mar 23 & 24. Take care! Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Re: [vcf-midatlantic] Kennett Classic surplus sale starts 3/19
by Mike Dank 03 Mar '24

03 Mar '24

Strangely I cannot find anywhere on that contact page to sign up for a mailing list. On March 3, 2024 8:44:57 PM UTC, Sentrytv via vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> wrote: >

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Kennett Classic surplus sale starts 3/19
by Bill Degnan 03 Mar '24

03 Mar '24

Kennett Classic will be selling surplus vintage computers starting March 19 through April 30 at the shop . If you're not already on the mailing list visit kennettclassic.com/contact.cfm More info will be posted on the KC web site, and weekly email, soon. Bill

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Pocket Zip disks and their PCMCIA holder
by Gregg Levine 03 Mar '24

03 Mar '24

Hello! At one of the Swap Meets one of our regulars sold me a collection of memory cards. Included in it was the holder for the rarely seen in public Pocket Zip disk holder. He did not have any as a part of his collection of items. I did find two on Amazon(!) and got them here earlier. The laptop that does have a PC card connector here, doesn't want to believe they exist. I have a vague recollection of talking with the late company of IOMega about the whole technology of Zip disks at a trade show a very long time ago, and the droid there showed me both. We also talked about the Bernoulli drives that the company did make, and he asserted that particular line ot technology really wasn't his forte. More about those as I continue investigating. Oh and the raptor is currently in hibernation inside the warehouse building, he'll be there until Spring starts officially. ----- Gregg C Levine gregg.drwho8(a)gmail.com "This signature fought the Time Wars, time and again."

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Repair Workshop Breakfast tomorrow
by Jeffrey Brace 02 Mar '24

02 Mar '24

9:30AM at Blue Swan 2116 NJ-35, Oakhurst, NJ 07755 See you there! Jeff Brace

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Trenton Computer Festival March 16, 2024
by Jeffrey Brace 02 Mar '24

02 Mar '24

VCF will have a table at the Trenton Computer Festival. Dean will be organizing it. I can't make it because I will be running the NJ Maker's Day exhibit @InfoAge on that same day. Here is the information about Trenton Computer Festival: *48th Annual Trenton Computer Festival (TCF) at TCNJ* *Saturday, 16 March 2024, 9:00 am to 5:00 pm* *FOR MORE INFO: **<**https://TCF-NJ.org* <https://tcf-nj.org/>*>* *The Theme is Generative AI (Artificial Intelligence). The Keynote Speaker is Brown U. Prof. Michael Littman, speaking on "Conveying Tasks to Computers: How Machine Learning Can Help".* *Advance Admission $15, At Door $20, Children (12 & under) Free* *Hosted by The College of New Jersey (TCNJ) <*https://tcnj.edu/> *and TCNJ School of Engineering <*https://engineering.tcnj.edu*/**> in Ewing, NJ* TCF is back with in-person activities & talks with one-way streaming – see < https://TCF-NJ.org <https://tcf-nj.org/>> For a day of digital/software/technology-related talks, workshops/tutorials, demos & exhibits and vendor sales - 11 separate topic tracks. *The EV Car Show and Ride & Drive *(10:00 am to 2:00 pm). ● Featured Speaker: Joti Balani, "Generative AI: The Evolution of Human-Machine Relationships" ● Featured Speaker: Sarah Nagy "Unlocking ROI on Data" ● Featured Speaker: Alianna Maren and Lee Goldberg (mod.), How to Make Artificial General Intelligence Work for You ● Trading Using Neural Networks – Donn Fishbein ● Machine Learning for Object Identification – Joe Jesson ● A full track on GAI in Music and the Arts, organized by Rebecca Mercuri ● Workshop Putting Gen. AI to Work Creating Art & Literature, Lou Judice ● Quantum Computing for Everyone – Barry Burd ● Hands-on Arduino Workshop for Beginners – Katalin Frolio ● One-day Updated Hands-on OOP University on Object-Oriented Programming. *# Vendor/Exhibitor Faire from 9:00 am to 3:00 pm.* *# Historic Sarnoff Collection Open/Tours from 11:30 am to 2:00 pm.* *# **A full day of presentations on IT professional topics (ITPC on Friday). * *# **HamCram (Get an amateur radio license in a day) starts 9:00 am.* *# TCF Banquet ($45 fee) at 6:30 pm – **<**https://TCF-NJ.org* <https://tcf-nj.org/>*>**.* *Smash Robot Battle Competition in the TCNJ Brower Student Center* Sponsored by the IEEE Princeton Central Jersey Section (PCJS); the Joint PCJS IEEE Computer Society and ACM Chapters; the Amateur Computer Group of NJ (ACGNJ); the New York Amateur Computer Club (NYACC); and the Garden State Java User Group (GSJUG). TCF Corporate Sponsors include PSE&G, Linear Modules and Systems MACOM, and the Round Mountain Group. Questions? Contact Al Katz, TCF2024 Chair at <alkatz(a)tcnj.edu> ADVANCED REGISTRATION *Save 25% by registering online, in advanced via Paypal.* Advanced Tickets are only $15 each. Use the QR Code below to pay in advanced or log into paypal.com <http://www.paypal.com/> and send payment to “TCF2024.ai(a)gmail.xn--com-9o0a Paypal will show payment went to the “The Institute of Electrical and Electronics Engineers” Take care! Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Fwd: VCF in 9059 this weekend
by Jeffrey Brace 01 Mar '24

01 Mar '24

---------- Forwarded message --------- From: Marc Natanagara Good morning, VCFers! I got into the 9059 classroom this morning to put soldering mats in the silver cabinet for you and to do a final cleanup. I also swept the floor and emptied both waste cans. I posted the room use "rules" on the wall in bright yellow. Please go over these with your people and address everything on the list before you leave on Sunday. As the scouts say, "Leave no trace." Let me know if you need anything. I may pop in on Sunday. Have a great event! *Marc A. Natanagara, Ed.D.* Volunteer | Trustee | Education Chair | Learning Consultant *InfoAge Science & History Museums* <http://www.infoage.org/> A clean start! [image: IMG_0018.jpg][image: IMG_0019.jpg]

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Repair Day - Free Stuff
by Andrew Diller 01 Mar '24

01 Mar '24

I'll be bringing a couple bins of free stuff i'm cleaning out- make sure you stop by the classroom (main repair room in 9059) and check out the pile. Switches (classic 3Com fast, one managed switch- non gig), Firewall gear (FortiGate 101c, ZyXell ZyWall USG50, odds and ends... I syquest drive I finally found (needs recap). -andy

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Repair Workshop Info for 3/2 & 3/3
by Jeffrey Brace 29 Feb '24

29 Feb '24

Click here for signup link <https://docs.google.com/spreadsheets/d/14wa6znBIKV3gqUCMb8FQKArDpEbfriAvH2O…> *WHERE:* 1) CDL's Hackerspace and classroom in building 9059 (Most people use this one) 2) 9032-A is only available after 5PM on Saturday. Another group is using it earlier that day. *TIME:*Saturday START time == 10 A.M. END time == 11PM. Sunday START time == 10 A.M. and END == 5 P.M. *COST:* $15 per person, per day. $25 per night for those wanting to stay overnight in the visitor center's bunk beds *OVERNIGHT*: Bring your own pillow, blankets, soap etc. We provide a bed frame and an uncovered mattress. There are showers and a kitchen for your use. - You can send: * Via PayPal to paypal(a)vcfed.org. * Venmo: @VintageComputerFederation * Cash, credit card, Apple Pay, etc. in person. We have a Square Device. *EQUIPMENT:* - VCF will provide a table and you can use any available electrical outlet. - Bring your own tools, power strips, power cords, and supplies etc. - If you need particular tools that you don't own or particular parts, please let others know that you need something. They may have what you need. Let them know ahead of time. - Let everyone know what project you are working on ahead of time to inspire collaboration. *DRINKS*: You should bring your own. We have a refrigerator in CDL to keep them cold. VCF will buy some water and soft drinks for member use. *FOOD*: *Saturday afternoon*: Everyone is on their own. *Saturday Night Dinner at around 7PM*: We often go out to dinner together. MJ's in Tinton Falls seems the new prefered spot. *Sunday Morning*: We usually meet at a diner around 9AM *Sunday Afternoon*: Everyone is on their own. *PARKING:* Park in the main parking lot, unless you are unloading. Don't park on the lawn. Also park on where are "no parking signs" There is now a dedicated fire lane. *PHONE:* (732) 722 - 5015 *EMAIL: *repairworkshops(a)vcfed.org Have fun everyone! :-D Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner VCF Mid-Atlantic Event Manager Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Repair Workshop CAUTION!
by Jeffrey Brace 29 Feb '24

29 Feb '24

There are new tables in the classroom space in 9059 (not the hackerspace side). We want to be careful not to damage them. Especially when soldering, but many other activities. I was asked by Marc Natanagara who is the Education Chair at InfoAge and has been renovating the classroom space to caution everyone. The repair workshop space has new tables because it is going to be a classroom that will be used by many groups including school groups. It's important to be careful with the new tables so that they are not permanently damaged. Use caution by using mats or cardboard when soldering and working with your items. Thanks so much! Jeff Brace VCF Mid-Atlantic Event Manager

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Silicone Soldering Mat (alternative)
by Herbert Johnson 29 Feb '24

29 Feb '24

Table and bench protective mats? Remember the goal, to protect a surfaces in quantity. Also: if the new tables are plastic, they might generate a static charge. You don't need anti-static technology, if you use non-static products like most papers and all woods. Plus a yielding surface may save a dropped item from breakage. Heat and chemicals were mentioned, also ordinary drinks and food. Suggestions: Hardboard Tempered Panel (Common: 1/8 in. 4 ft. x 8 ft.) StoreSKU# 832777 $13.98 Home Depot PATRIOT TIMBER PRODUCTS 1/8 in. x 4 ft. x 8 ft. Sanded Plywood StoreSKU# 1008039110 $18.98 Home Depot These would be cut on-site to fit. But I don't know the price of the recently purchased tables, or their size. Guessing they are 24 X 48, you'd get 4 table covers per panel. At $3.50 or $4.50 per table for a long term cover, that's plausible. They need not be finished, or some clear coating applied to make them water/stain proof. and you can flip them over when one surface fails. HOw to attach? Their weight will hold them down. Or simple clamps, perhaps 3D printed to size if one wants to make a project of it. But sticky tape will do. Possibly rubber cement? Other choices would include construction paper products, from office supply or art supply stores. Also a roll of brown-paper as used as packing and wrapping. This class of products is for short-term and disposable (recyclable) use. Attach with simple tape products, most tape residues can be cleaned off. Of course in public uses, paper products have often been used to cover tables. Plastic is less recycable. I think cloth is probably not a practical option on cost and performance and fuss, other than decorative purposes. This is a working situation. In a pinch? Have a big chassis with sharp corners to fix? Go to the dumpster and grab a cardboard box. Cut it open and spread it on the table, cut off the excess. Done. Who pays for these? Ask for contributions from attendees who use the tables. Taking care of tools and facilities should be a consideration by those who benefit from these resources. Regards Herb Johnson -- Herbert R. Johnson, New Jersey USA https://www.retrotechnology.com OR .net preserve, recover, restore 1970's computing email: hjohnson AT retrotechnology DOT com or try later herbjohnson AT comcast DOT net

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Re: [vcf-midatlantic] Repair Workshop CAUTION!
by Bart Hirst 29 Feb '24

29 Feb '24

What be next, ESD wrist strap required?? ;) On Thu, Feb 29, 2024 at 10:16 AM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > Double sided “carpet” tape > > Sent from: > My extremely complicated, hand held electronic device. > > > On Feb 29, 2024, at 9:49 AM, Dan FitzGerald via vcf-midatlantic < > vcf-midatlantic(a)lists.vcfed.org> wrote: > > > > And the nice thing is that you can use carpenter's staples, Gorilla > > glue, and some light welding to keep it in place on the table! > > > > Anyone? Anyone? > > > > I'm here all week folks, try the veal! > > > > Regards, > > Dan FitzGerald > > They/Them or She/Her > > http://www.vm.ibm.com/devpages/dfitzger > > > > -----Original Message----- > > From: Chris Fala via vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> > > Reply-To: vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> > > To: vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> > > Cc: Chris Fala <chrisjpf33(a)gmail.com> > > Subject: Re: [vcf-midatlantic] Repair Workshop CAUTION! > > Date: 02/29/2024 09:26:21 AM > > > > Yes! This is an easy and convenient solution. I have something similar > > to > > this: > > > https://www.amazon.com/Kaisi-Insulation-Soldering-Maintenance-Electronics/d… > > (just an example, there are many of these available). > > > > I use it all the time to save my dining room table! LOL > > > > > > > >> On Wed, Feb 28, 2024 at 9:22 PM William Dudley via vcf-midatlantic < > >> vcf-midatlantic(a)lists.vcfed.org> wrote: > >> > >> This is an inexpensive ($6) and portable silicone mat: > >> > >> > >> > https://www.walmart.com/ip/Mainstays-Reusable-Silicone-24-x-16-Pastry-Mat-w… > >> > >> Bill Dudley > >> This email is free of malware because I run Linux. > >> > >> > >> On Wed, Feb 28, 2024 at 7:20 PM Martin A. Flynn via vcf-midatlantic < > >> vcf-midatlantic(a)lists.vcfed.org> wrote: > >> > >>> On 2/28/2024 6:21 PM, Jeffrey Brace via vcf-midatlantic wrote: > >>>> There are new tables in the classroom space in 9059 (not the > >> hackerspace > >>>> side). We want to be careful not to damage them. Especially when > >>> soldering, > >>>> but many other activities. > >>> > >>> Going to ask VCF to extend the same courtesy to the benches in the > >>> Makerspace!! > >>> > >>> Martin Flynn > >>> > >>> CDL > >>> > >>> > >> > >

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Silicone Soldering Mat
by Chris Fala 29 Feb '24

29 Feb '24

Of course while poking around Amazon, I was compelled to buy a larger one for myself! https://www.amazon.com/dp/B08V51BPYV?smid=A1H12SUFSKPN2D

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Different Repair Workshop CAUTION!
by Neil Cherry 29 Feb '24

29 Feb '24

There is one damaged bench top (split from left to right) in the first row. Bench is usable but needs to be covered to avoid splinters. I've notified Marc. there is another desk where the laminated boards are starting to separate. I haven't checked all the benches. I'll show Marc on Saturday. BTW we need help with getting the new projector wired up. This may occur on Saturday also. I will be in the CDL working on Atari's for the VCF Atari Class. I'll be taking up 2 CDL benches to work. I'll have 4 Atari's, scope, monitor and lots of junk. -- Linux Home Automation Neil Cherry kd2zrq(a)linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies KD2ZRQ

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Re: [vcf-midatlantic] June 22 Swap Meet questions
by Bob Shuster 29 Feb '24

29 Feb '24

Thanks for the input. I have to figure out how much space I will need and how I will lay things out. I’m definitely going for two spaces right now, but might expand to a third. My stuff is carefully curated and I need to figure out the best way to lay it out in a manner that makes it easy to see but also protects the items. I have a ton of tarps and moving blankets, but I’d rather keep stuff up off the ground, and I’m looking into borrowing a canopy of some sort for shade. I have more than is listed on my website, but that’s mostly more modern stuff, cables, or non-computer vintage electronics and such. Any advice/help is most welcome! Jeff - renting a table or two might be a consideration - do you have any idea of the fee? Thanks. - Bob Shuster (http://www.theshusters.com/bobvintage.html)

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