- vcf-midatlantic - lists.vcfed.org

Someone is selling 1, 274 IC DIP and SIP Chip Sockets for $50 King Of Prussia
by Christian Liendo 26 Jan '23

26 Jan '23

Anyone need bulk sockets? https://philadelphia.craigslist.org/sop/d/king-of-prussia-1274-ic-dip-and-s…

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Updated VCF East exhibitors list
by Peter Fletcher 26 Jan '23

26 Jan '23

I had a friend ask me about attending VCF East this year and wanted a list of what to expect from the exhibitors. I pointed him to https://vcfed.org/events/vintage-computer-festival-east/vcf-east-exhibits/ but there are only two exhibits listed which I assume is not up to date. Is there a current list I can show him? Thanks! -Pete

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Information on Intellec 4 mod 40
by Herbert Johnson 26 Jan '23

26 Jan '23

On 1/23/23 18:23, Jeffrey Brace via vcf-midatlantic wrote: > Someone contacted VCF looking for information on an early intellec 4 > mod 40, a copy of the original RAM based native assembler > Dave McGuire > LSSM received an Intellec 4, a 4 Mod 40, and an 8 Mod 80 this past > fall. Included with the systems was a large amount of documentation > and, I believe, software on paper tape I'm working with Jeff's person. They provided me a ROM image of one of their boards, which contains the same 4040 ROM monitor code as my intellec 4/40 and Kyle Owen's intellec. https://www.retrotechnology.com/restore/int_440.html https://www.retrotechnology.com/restore/intel440_roms.html There's some intellec 4 40 resources around the Web but not too many. So any code or ROMS found on these systems should be evaluated and shared if at all possible. Early-EARLY-days microcomputer systems like these are unique computers by any standards; because there were *no standards* in those days. This is a hard fact to appreciate in a world of consumer computers. Example: The 4/40 never used any mass storage other than paper tape. The 8/80 didn't have Intel-supplied floppy drives; by the time of floppies Intel moved to the Multibus (these aren't Multibus). So, any code would be either paper-tape, or printed source listings, or something archived later onto floppies. Regards Herb -- Herbert R. Johnson, New Jersey in the USA http://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] rolls of metallic paper
by David Gesswein 25 Jan '23

25 Jan '23

On Wed, Jan 25, 2023 at 02:03:43PM -0500, bob jeffway.com via vcf-midatlantic wrote: I agree on Tektronix. When I was at UMASS in the 70's, we had a printer on the Tektronix 4012 that had some strange paper like that. White crystals grew on the case where the paper came out - kind of strange, I wonder what the technology was? What I am familiar with for the storage tube machines used dry silver paper. It was exposed by a line CRT in the printer then developed with heat. https://w140.com/tekwiki/wiki/4631 Earlier 4610. Title is wrong. https://www.computerhistory.org/collections/catalog/102662132 They did make a electrostatic one. Never saw it in person. Did use 4610 and 4631 when they were current. https://www.electronixandmore.com/misc/index.php?item=53. This sound different than the aluminum coated paper type previously discussed since it uses toner.

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rolls of metallic paper
by Jeffrey Jonas 25 Jan '23

25 Jan '23

I have some rolls of paper with only a generic part number. 8" wide, like a teletype roll but silver/grey metallic coating. I don't think it's thermal. What printer technology used that? -- Jeff Jonas

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You will never look at CGA the same way again!
by Ethan O'Toole 25 Jan '23

25 Jan '23

Sooo.... the IBM PC CGA. The horrible abomination that it was... this demo came out fairly recently that is CRAZY!! DOS 5150 with the standard PC CGA card and the PC speaker: Area 5150: https://www.youtube.com/watch?v=fWDxdoRTZPc

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Information on Intellec 4 mod 40
by Jeffrey Brace 24 Jan '23

24 Jan '23

Someone contacted VCF looking for information on an early intellec 4 mod 40, from his university years 1974-1977. He is looking for any information or a copy of the original RAM based native assembler, that came on 8-hole paper tape. His machine is being restored after a three/four decades of non-use and he is trying to source the original assembler program. I did refer him to our VCF Forum as well as CHM, but thought I might post to this list as well. Thanks! ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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NJ Makesr Day Volunteers
by Jeffrey Brace 23 Jan '23

23 Jan '23

VCF will be participating in a NJ Makers @ InfoAge in the Dining room. It will be March 26 from 11AM to 4PM. All of the other member organization of InfoAge will be participating in the event as well. I'm looking for volunteers to help run our table as well as with planning for this event. If you are interested, then please send me a private reply and I will get in touch with you. We did this last year and it was a great event. Fun and lots of attendees enjoyed it! Thanks! ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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2023 VCF Event Dates
by Jeffrey Brace 23 Jan '23

23 Jan '23

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Arsen Arachelian, Vintage Lisa Enthusiast passes at 51
by Christian Liendo 22 Jan '23

22 Jan '23

I worked with him at a Internet service provider called Globix in the 90s, please share with other Apple Enthusiasts Obituary of Arsen Arachelian On January 18, 2023, Arsen “Ray” Arachelian, 51 years old, died of colon cancer. He is survived by his wife Lee Arachelian and two sons William and James Arachelian. Ray was born in Constanta Romania and came to the United States when he was 8 years old. He was the only child of his family. He had a college degree in Computer Science and had been working in IT industry until he died. His last job was with Warner Bros Discovery HBO. Ray had been married since September 1999.He and his wife were together for more than 23 years. His two children are 18 and 15 years old respectively. https://parkfuneralchapels.com/tribute/details/4062/Arsen-Arachelian/obitua… Ray was a Lisa computer enthusiast. He’s the creator of Lisa Emulator and had shared freely his software with people like him around the world. He had donated generously and passionately his time and money on Lisa Project, which was pursued by a small group of enthusiasts trying to keep Lisa legacy alive. He has many admirers and friends within their online community. https://github.com/rayarachelian/lisaem Ray is deeply loved by his families and friends. He’ll forever be missed. Visiting Hours 12:00 pm - 3:00 pm Saturday, January 28, 2023 Park Funeral Chapel 2175 Jericho Turnpike Garden City Park, New York, United States

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VCF East related.....
by Martin Flynn 22 Jan '23

22 Jan '23

*The good news:* CDL deployed a combination phone and network jack next to the lobby fireplace for digital signage during VCF East. CDL has the stand and player, need to source a suitable display * http://compdecon.org/wp-content/uploads/2023/01/IMG_3222-scaled.jpg *The bad news:* Persons unknown decided spend a day scrapping out the both the Army and InfoAge installed telephone and data cables in the hotel basement * http://compdecon.org/wp-content/uploads/2023/01/IMG_3216-1-scaled.jpg * http://compdecon.org/wp-content/uploads/2023/01/IMG_3213-1-scaled.jpg * http://compdecon.org/wp-content/uploads/2023/01/IMG_3212-1-scaled.jpg Sadly, this now make it impossible to provide analog or digital dial tone from the Building 9059 PBX in support of buildings 9001 and 9032 A-D without a huge expenditure to replace / splice the cables. A police report was filed, Wall sent over their detectives to take pictures and document the theft. If you have question, email please to keep the list clutter down... Martin Flynn

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OT: Move over Netflix, The Army Signal Corps was Here First
by Jeffrey Brace 22 Jan '23

22 Jan '23

Two Rivers Times a local newspaper talks about filmmaking by the army at Fort Monmouth over the years: http://tworivertimes.com/move-over-netflix-the-army-signal-corps-was-here-f… ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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VOX looking for a Lisa to demo
by Jason Perkins 21 Jan '23

21 Jan '23

VOX media contacted VCF looking for someone who could bring a Lisa to their NYC studio for some demos. If they can't find someone nearby NYC, their producer, who is in Seattle, thinks we can work something out and do the demo in WA. I'm trying to talk them into this route :) I did say I'd ask if anyone was closer to their preferred location in NYC. They're looking to shoot between 1/24 and 2/3. Thanks, -- Jason Perkins

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Re: [vcf-midatlantic] MICROTREK Aug 1976
by ☼ wil lindsay ☼ 21 Jan '23

21 Jan '23

Hi David, I follow eBay pretty heavily. Other computer magazines from that early era get listed in the $50-$80 but never sell. The ones that do sell are usually below $10 or a bundle of multiple issues for a higher amount. You may have better luck on the local market for that, as there are ads for PC76 in Atlantic city,making it a bit of a regional curiosity. If money is an issue, I'dhappily pay you $15 for the right to scan it, submit the files to Archive.org and then donate the paper copy to VCF. Let me know if that helps or if you have a larger stack that could be archived, and we can work something out offline. -Wil Lindsay. On Sat, Jan 21, 2023 at 1:03 AM David Keith via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > I have been inactive for a while. I was basically forced to retire about a > year ago, and now I am looking to sell off some of my collection vintage > computer items. I have pristine copy of Microtrek August 1976 magazine, I > would like to sell on eBay. Wondering what I should list it as a starting > price. Any ideas ?? > ThanksDavid duBose >

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MICROTREK Aug 1976
by David Keith 21 Jan '23

21 Jan '23

I have been inactive for a while. I was basically forced to retire about a year ago, and now I am looking to sell off some of my collection vintage computer items. I have pristine copy of Microtrek August 1976 magazine, I would like to sell on eBay. Wondering what I should list it as a starting price. Any ideas ?? ThanksDavid duBose

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No more Amazon Smile
by Christian Liendo 20 Jan '23

20 Jan '23

https://www.aboutamazon.com/news/company-news/amazon-closing-amazonsmile-to…

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social.vcfed.org (VCF Mastodon instance) is down
by Dan FitzGerald 19 Jan '23

19 Jan '23

I'm not sure where else to take this to, so I am sending it to the list. Our Mastodon instance at social.vcfed.org has been unreachable for the last several hours. Does anybody know what is going on, or when it is going to be back online? Regards, Dan FitzGerald They/Them/Theirs http://www.vm.ibm.com/devpages/dfitzger

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Repair Workshop 2023-01-14 & 15
by Jeffrey Brace 19 Jan '23

19 Jan '23

Seems like everyone had fun this past weekend with the repair workshop. The usual suspects were there. Lots of interesting stuff getting fixed. David Gesswein repaired the VCF Museum's Xerox as well as the Sol-20. Thanks so much Dave! One lady came who needed picture files recovered from her early 2000's Macintosh. Dan helped her to recover and transfer most of them. Bill Dromgoole worked on the Univac a bit. Thomas worked on the Iris Personal as well as The Philips CD-ROM. Supposedly this is the first CD-ROM drive ever made. Very cool. For dinner Saturday night we split into two groups half went to Brick House Tap & Tavern, the other half went to MJs. Both were good. Sunday night we tried a new place Patrick's Grill and the 8 of us really liked it. So I will make reservations next month for this place. Anyone else want to chime in on what they worked on? ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Left Hakko FR-301 Desoldering Gun at Workshop?
by Alexander Jacocks 18 Jan '23

18 Jan '23

All, Did anyone see a Hakko desoldering gun, in its case, at the last workshop, in the CDL? I am not sure what I did, but I can’t find it in my car. Thanks! - Alex

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AT&T 715-BCS TERMINAL
by Martin Flynn 18 Jan '23

18 Jan '23

Looking for anAT&T 715-BCS terminal to pair with a Definity PBX. There's a couple on eBAY, would prefer to buy known-good from a VCF member

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VCFE phones
by Mike Loewen 18 Jan '23

18 Jan '23

Is anyone planning to set up a PBX at VCFE in April? I'll be running a BBS on one of my big Tandy systems. Mike Loewen mloewen(a)cpumagic.scol.pa.us Old Technology http://q7.neurotica.com/Oldtech/

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I need to make some space...
by William Sudbrink 17 Jan '23

17 Jan '23

I'm not getting rid of my whole collection or anything, but things are getting a little tight in terms of physical space and I have stuff that simply doesn’t keep my interest. I’d rather not do ebay so I’ll offer them here first. I will put up pictures if there is interest. None of this is “barn stored”. It has all been in my temperature controlled house since last century. 1. HP series 100 (the 150 and 150 touchscreen II) documentation. This could be described as the “grey wall” for the HP 150. All the basic books plus Wordstar, Spellstar, Multiplan, etc.etc. At least 20 “boxed books”. Many (I think all but have not checked yet) have original diskettes. HP-150 with built in printer, floppy and hard disks to come when I get back to it. 2. IBM PC original “boxed book” “DOS” part number 6024001 on spine. I would call the condition excellent. Two original 5.25 diskettes: DIAGNOSTICS Version 1.02 6081552. DOS Version 1.00 6172212 (I’m tempted to keep this because of the CP/M –vs- DOS controversy) 3. IBM PC original “boxed book” “DOS” part number 6024001 on spine with round sticker “1.10 with Graphics”. I would call the condition very good. One original 5.25 diskette: DOS Version 1.10 1502330 4. IBM PC original “boxed books” "UCSD p-System": Beginner’s guide, Assembler reference, Internal Architecture Guide, User’s guide. The “User’s guide” box contains five original 5.25 diskettes: STARTUP, SYSTEM 2, SYSTEM 4, EXTRAS and UTILITIES. 5. IBM PC original “boxed book” IBM FORTRAN-77 Reference for the UCSD p-System. Contains one original 5.25 diskette: UCSD p-System FORTRAN Version IV.0 6936510 6. IBM PC original “boxed book” IBM COBOL Compiler by Microsoft. Contains two original 5.25 diskettes: LIBRARY 6936566, COBOL 6172250 7. Various other original IBM PC “boxed books”. Document Retrieval Assistant, 3101 Emulation, Dow Jones Reporter, SNA 3270, etc. etc. Maybe a dozen. 8. The box and binder for “Guide to operations, Personal Computer XT”. Unfortunately, it does not contain this. Instead it contains “The CP/M and IBM Public Domain Library” by Dynacomp. This all seems to be later CP/M, running on the IBM PC or Kaypro. Just documentation and listings, no media. 9. IBM Graphics Development Toolkit “boxed book”. Three original 5.25 diskettes: VDI device drivers, Language Libraries, Supplemental Programs. 10. BASIC – Personal Computer – PCjr “boxed book”. Contains original ROM Cartridge “Cartridge BASIC” 1302285. (Maybe this should go with the PCjr I will be offering when I dig it out) 11. ERGO MOBY BRICK 486DX-33 computer. Missing original power supply. I cobbled together a supply last century some time and it worked then. Has not been powered on in at least 25 years. 12. Osbone Executive. Limited Edition, personalized plaque to “ANNETTE KING”. It ran last century. Has not been powered on in at least 25 years. More to come. Bill S. -- This email has been checked for viruses by Avast antivirus software. www.avast.com

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Repair Workshop 2023-01-14 & 15
by Herbert Johnson 17 Jan '23

17 Jan '23

> Anyone else want to chime in on what they worked on? Saturday, I assisted Dave Gesswein, in successful recovery of my Intel Multibus System 320 hard drive's contents. Those contents were a Xenix installation for that Intel 80826 based system. Those interested can contact me for details. The recovered drive image will be processed by a group of Multibus supporters. My thanks to David for his MFM recovery and replacement services, they are an outstanding contribution to vintage computing restoration. I chatted with a few of the other workshop participants, and obtained parts from a few of them as prearranged. Dan had some questions about restoring Macintosh floppy drives, and so I spent some time with Dan on those matters. David and I muscled the Xerox Star from the Warehouse to the CDL lab for his repairs. We looked briefly at Neil Cherry's OS-9 68K system, but David waited for Sunday when Neil would be available. Neil reported he wasn't able to get to his system then. Well, I'll encourage him to work on it in the future. It's a nice system. Regards, Herb Johnson -- Herbert R. Johnson, New Jersey in the USA http://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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1/15 repair session, the OS-9 68K for Dave
by Neil Cherry 16 Jan '23

16 Jan '23

Ooops, forgot about this. Good news the system is in the lab. Bad news is it wasn't one of my main distractions. It wasn't totally ignored. I need to pull the disk drive to see if it's operational. I'll see what I can start tonight. Good news is that Dave was able to read some of the Gimix ST255 drive (similar format to the 68K OS-9 format). And the 68K has the same kind of drive. For those interested in the Gimix, I asked about Gimix OS9 boot disks and David Weins asked me about what disk controller it has. The OS-9 os is a lot like CP/M. You have to gen the disks and have all the correct device driver for it to work. Dave Gesswein checked the disk image he has from the Gimix and it's OS-9 Level II. So the Gimix can access up to 2M of RAM, I think. OS-9 for the 68K is more like Level II and there was no OS-9 Level I for the 68K. The rest of the folks are probably getting glassy eyed over this but for the 6809 the levels are how it handles memory and processes. It's a bit like UniFlex for the 6809, another scared Unix like OS for the 8 bit processor. -- 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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Settings for Jan (1/15 repair session)
by Neil Cherry 16 Jan '23

16 Jan '23

First, I had a great time with all the VCF folks on Sunday at CDL. I met new people and had fun getting distracted with this and that related to vintage computers. :-) I was working with Jan on her IBM PC/AT and getting the setting for the cards. Well my memory isn't so good but I did find a useful site that will help. http://dosdays.co.uk/topics/io_addresses_irq_dma.php If the network card can be set for IRQ 9 that's a good spot. PC/XTs could use IRQ 2 but that's handling the IRQs 8-15 and IRQ 9 is it's replacement on the AT. IRQ 3 is com port 2 and IRQ 4 is com 1. I got them backwards. The above web site has good references for the IO ports. This get muddled depending on the settings of the other cards. I seem to recall that many PC, XTs and ATs didn't have an LPT2 and I don't recall seeing a sound card in your machine. -- 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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Breakfast tomorrow at Blue Swan at 9AM
by Jeffrey Brace 15 Jan '23

15 Jan '23

If you’re in, let me know. -- ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Repair Workshop reminder 1/14 & 1/15, 2023
by Herbert Johnson 14 Jan '23

14 Jan '23

Weather looks good for me to drive up Saturday, not Sunday. David Gesswein kindly accepts my request to read an MFM drive I have. I have some parts to pick up from various people. I'll bring a simple 6809 kit to assemble with some of those parts. And I'll float around to see if I can help others with repairs. Regards Herb Johnson -- Herbert R. Johnson, New Jersey in the USA http://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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Repair Workshop reminder 1/14 & 1/15, 2023
by Jeffrey Brace 13 Jan '23

13 Jan '23

Just reminding everyone that there is another repair workshop this coming Saturday and Sunday January 14 and 15. Signup here: https://docs.google.com/spreadsheets/d/1-CzOmtnbGWwcNc53ewymcAe1Zt5xNTow4cm… ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner 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] Repair Workshop reminder 1/14 & 1/15, 2023
by Neil Cherry 13 Jan '23

13 Jan '23

On 1/13/23 10:34, Jonathan Sturges via vcf-midatlantic wrote: >> Reset sees a low (/RST) every 3s. So there is a watchdog timer setup. I traced it back to a MC14584B (yea!) which is a hex >> schmidt trigger (what? 😉 ). So I have to do some more tracing but the MC14584B is socketed so I'll build a manual reset >> circuit and figure out what is going on later. > Ahh, the Schmidt trigger. Pairs of those gates are good for fixing marginal amplitude issues and/or "squarifying" a > less-than-square waveform. If the RST signal looks well-formed, then the problem is probably upstream of the Schmidt trigger. I pop'd the chip out and soldered up a resistor, cap and NO PB on a carrier. I'll search for the watchdog later. That solves that problem for now. The new troublemaker is the USB dongle doesn't have enough oomph to pull up the 6803 Rx pin. I'm going to drive it with either a NOT or NAND gates or an opto to drive it a bit more. -- 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] Repair Workshop reminder 1/14 & 1/15, 2023
by Jonathan Sturges 13 Jan '23

13 Jan '23

-----Original Message----- From: Neil Cherry via vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> Subject: Re: [vcf-midatlantic] Repair Workshop reminder 1/14 & 1/15, 2023 > Reset sees a low (/RST) every 3s. So there is a watchdog > timer setup. I traced it back to a MC14584B (yea!) which is a hex > schmidt trigger (what? ;-) ). So I have to do some more tracing but the > MC14584B is socketed so I'll build a manual reset circuit and figure out what is > going on later. Ahh, the Schmidt trigger. Pairs of those gates are good for fixing marginal amplitude issues and/or "squarifying" a less-than-square waveform. If the RST signal looks well-formed, then the problem is probably upstream of the Schmidt trigger. -Jonathan

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Jan 2023 Repair Workshop Info
by Jeffrey Brace 13 Jan '23

13 Jan '23

Signup for January 2023 Repair Workshop here: January 2023 Repair Workshop Signup Sheet <https://docs.google.com/spreadsheets/d/1-CzOmtnbGWwcNc53ewymcAe1Zt5xNTow4cm…> Spaces are first come first serve to the CDL space. Limited space available. Sign up to guarantee a space in your preferred area!!! *DATES*: January 14 & 15, 2023 *LOCATIONS:* InfoAge: 2201 Marconi Road, Wall Township, NJ Building 9059 (CDL Hackerspace - Formerly IXR) TIME: Saturday START time == 10 A.M. END time == 11PM. Sunday START time == 10 A.M. and END == 5 P.M. *SIGNUP HERE!*: Signup sheet Click HERE <https://docs.google.com/spreadsheets/d/1-CzOmtnbGWwcNc53ewymcAe1Zt5xNTow4cm…> ! Face Masks are required for non-vaccinated people. Vaccinated people have the option to wear masks, but they are highly recommended. *COST:*- $15 per person, PER day. This money goes to InfoAge and CDL. - $25 per night for those wanting to stay overnight (Money goes to InfoAge). Please pay ME upon arrival. Cash or PayPal is acceptable as payment. Ask ahead of time if you need to use a credit card. *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 pay via PayPal to paypal(a)vcfed.org. or to me via cash or credit card in person. *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 post to the list for those going. 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 Night Dinner at 7PM?*: Options: * Brick House Tap and Tavern * MJs * Patrick's Pub * Ottos * Robinson Ale House *Sunday Morning*: Blue Swan Diner *Sunday Afternoon*: Wawa? *PARKING:* Park in the main parking lot, unless you are unloading. Don't park on the lawn. QUESTIONS? PHONE: ( 7 3 2 ) 7 2 2 - 5 0 1 5 EMAIL: repairworkshops AT vcfed DOT org Have fun everyone! ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Show-runner VCF Mid-Atlantic Executive Director Vintage Computer Federation is a 501c3 charity http://www.vcfed.org/ jeffrey(a)vcfed.org

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[FS] Really Nice Fully Loaded and Boxed IBM AT with 5153 and 5154 Monitors
by Alexander Jacocks 10 Jan '23

10 Jan '23

All, I just posted this on VC Forum, and wanted to make sure that everyone here saw this listing, as well. Please let me know if you are interested. - Alex https://forum.vcfed.org/index.php?threads/extremely-nice-foully-loaded-ibm-…

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VCF East 2023 Registration Links
by Jeffrey Brace 07 Jan '23

07 Jan '23

In case you missed the previous emails: Exhibitor Registration: https://forms.gle/iKZNPqFPSeobjnau5 Vendor Registration: https://forms.gle/zGsPxCcuDQBXm3fb7 Volunteer Registration: https://forms.gle/UEbiFYvgEiBk9MS27 Speaker Registration: https://forms.gle/yvV311ucBEWXzqpx9 ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner 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] What we can learn from vintage computing
by Jeffrey Jonas 05 Jan '23

05 Jan '23

Bob Jeffway posted: > I co-teach a class at University Of Massachusetts in Amherst > using Bob Applegate's KIM-1 replicas. An interesting choice for sure. Hex keypads & displays are definitely a step-up from toggle switches and individual bits. > We start with machine language programming, then move to an assembler, > and teach all the low-level stuff; address bus, data bus, controls, clock, etc. > and how to interface hardware. Very nice! Ben Eater advocates breadboarding everything yourself, learning every wire along the way: https://www.youtube.com/c/beneater One of my masters' degree pre-reqs was a 68000 lab course with this single board trainer: http://ferretronix.com/tech/sbc/index.html#68k The ROM provided an interactive debugger and a few run-time library calls for print, read, etc. http://ferretronix.com/tech/68k/68k_monitor_notes -- jeff jonas

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Bad bearing in Atlanta (ST-225)
by Neil Cherry 05 Jan '23

05 Jan '23

Michael Evenson of the FlexUsergroup (FuFu) email list (Flex, OS9, OSK, UniFlex) has a drive with a failing bearing. Is there a repair group down in Atlanta are like we have at the museum in Wall? Really like to help him keep going on his emulator. If not does anyone have a ST225 drive they're not using? -- 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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OS-9!?! :-)
by Herbert Johnson 05 Jan '23

05 Jan '23

> On 1/3/23 10:09, Neil Cherry wrote: >> Dave I think we need to get you a 68000 OS-9 system for the LSSM! Taking >> the Large Scale technologies and putting them into the little scale devices. > > I would absolutely love that. What hardware do you think would be > appropriate? -Dave Mc Guire Maybe 20 years ago, I worked in the Princeton NJ area for a tiny company that produced a PC board imaging scanning system, for PC board component inspection. It used an analog TV camera on an X-Y mount, digitized images, and recognition software trained on other images. Of course it looked for component errors, misplacement, etc. The computer was a Motorola VMEbus 68000 system, running on OS-9 68K. The image processing code, was FORTH. Motorola produced a range of VMEbus 68K systems, as did other companies. But Motorola created the VMEbus. I believe OS-9 68K found a lot of industrial use, it was a bit pricey in hardware and software for home/hobby users. But many hobbyists and business people familiar with SS-50 and OS-9 6809 (and Flex), found their way to OS-9. And i think there was an OS-9 flavor for the Tandy Color Computer (6809) line. Early Sun stuff was 68000 I believe. Unix ran on 68000's. and of course, the Macintosh was 68K before PowerPC. Later in life, I've accumulated some VMEbus cards including various 68000 and 68010 boards and I/O cards and chassis. They are out-of-favor now of course, but I get requests occasionally for replacement boards, not much hobby interest. No software for them. An OS-9 port would not be hard, but too hard for me. To Dave's question. It's a decision in a vintage computing collection, to select industrial equipment, business equipment, or hobby equipment, or the crossovers. People choose what's familiar to them, from whatever domains where they encountered computers they found of interest. "Hardware appropriate"? Depends on your goals. But a 21st cent. SS-50 6809 running NitrOS9, next to a 68000 industrial thingy running something (OS-9, Unix), and a Tandy Color Computer nearby, would be a Motorola trifecta. Add the SWTPC 6800 running Flex on floppy to get something seriously vintage. Regards, Herb -- Herbert R. Johnson, New Jersey in the USA http://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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OS-9!?! :-)
by Herbert Johnson 05 Jan '23

05 Jan '23

> Douglas Crawford wrote: > I'm not sure what those user accomplished with [OS-9], that > would be interesting to hear about if someone wanted to start a thread > on that. Um, "read the fine Internet". Archives of old user group emails, archives of old user-group paper newsletters. It's fine to have conversations; but to "what users accomplished", look at the records, look at the works. In any event, OS-9 and SS-50 systems in the era were sufficiently robust to be used in industrial and business systems. A search for catalogs and conventions sponsored by OS-9 (Microware) using companies will suggest the range of customers and applications. It's from a time before the IBM PC monoculture, when microcomputers of all kinds flourished, and did real work. "Thunder is good, thunder is impressive; but it is lightning that does the work." - attributed to Mark Twain Herb Johnson -- Herbert R. Johnson, New Jersey in the USA http://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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MDD G4 MAC Power supply MOSFET needed
by Sentrytv 04 Jan '23

04 Jan '23

Hello to all you Mac people out there. I’m currently working on a power supply (Samsung P58) for a mirrored G4 Mac that has a bad mosfet W20NM50. Apparently this is no longer manufactured but is available from many Chinese and Korean outfits on eBay. Obviously I don’t want to wait that long to get one or take the chance that they are restamped. So, anyone out there in nj or near by, going to the January Workshop that may have a couple of these? Please feel free to contact me directly if you can help. Thanks Mike Rosen Sent from: My extremely complicated, hand held electronic device.

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Building a Frankenstein 64
by Christian Liendo 03 Jan '23

03 Jan '23

I didn't write this, I just thought this was a good article. https://celso.io/retrocomputing/2022/12/27/c64-from-scratch

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Re: [vcf-midatlantic] New Year
by Jeffrey Brace 02 Jan '23

02 Jan '23

On Sat, Dec 31, 2022 at 9:11 PM Bob Aviles via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > Happy New Year to all!! > I wish a Happy New Year to everyone here! May this year be a great one for you all! > Bobby >

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Volunteer Registration VCF East 2023
by Jeffrey Brace 01 Jan '23

01 Jan '23

*Hello volunteer!* Thank you for your interest in volunteering for VCF East 2023! Volunteers are key to making our show successful. As thanks for volunteering, you will receive: t-shirt, overnight stay in the Sandy visitor center, access to the show and the warm and fuzzy feeling that you volunteered for a great non-profit like the Vintage Computer Federation. We are looking for volunteers to help before, during and after the show. *Pre-show: 12 people* - Setup tables, chairs, tablecloths, signs. - Move items from warehouse. - Setup A/V. Setup signs, etc. *Show days: 8 people per day (4-hour shift)* - Front desk - Sell tickets, swag - Manage consignment. - Operate A/V. *Post-show: 12 people for 4 hours* - Stack/move tables, chairs, beds. - Take down tablecloths, swag, signs. - Move items to warehouse. Main Setup is Thursday 10AM to 10PM. Some setup will be done on Wednesday. The show itself is: Friday, April 14: 8AM to 5PM Saturday, April 15: 8AM to 5PM Sunday, April 16: 8AM to 5PM If you are interested in being a volunteer, then please fill out the form here: https://forms.gle/UEbiFYvgEiBk9MS27. If you have an questions, then please e-mail the showrunner vcfeast(a)vcfed.org <vcfeast(a)vcfed.org> Thanks so much! ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner 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] New Year
by Christian Liendo 01 Jan '23

01 Jan '23

Happy New Year to you too and to everyone. Hope to see you all soon On Sat, Dec 31, 2022, 9:12 PM Bob Aviles via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > Happy New Year to all!! > Bobby >

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New Year
by Bob Aviles 01 Jan '23

01 Jan '23

Happy New Year to all!! Bobby

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1968 Longley-Rice model in Fortran IV
by Herbert Johnson 31 Dec '22

31 Dec '22

>> the RF propagation model by Anita Longley and Phil Rice, still widely >> used after a half century. Going from one old report to another, I >> found the original 1968 CDC-3600 Fortran IV source code as an appendix ...and there's some C++ code and Python code in the mix. This looks like fun stuff to an old engineer like me; and some of my amateur radio friends too. Radio propagation is still an art among some hams these days. FORTRAN, well, that was my first programming language. I've sent you a private email, and I'll see if I can poke at this code myself. Thanks for posting notice of this work; your Web page shows good historic technical preservation at work. That's how it's done. Regards Herb Johnson -- Herbert R. Johnson, New Jersey in the USA http://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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Soviet Project SPHINX
by Mike Markowski 29 Dec '22

29 Dec '22

An impressive looking Soviet project from 1987: https://www.inexhibit.com/case-studies/project-sphinx-when-the-ussr-tried-t… Mike Markowski, ab3ap

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9000 subscribers for VCF's YouTube channel!
by Jeffrey Brace 29 Dec '22

29 Dec '22

VCF's YouTube channel is up to 9K subscribers! Only 1K more to get to our goal of 10K! https://www.youtube.com/@vcfederation ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner 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] Slightly O.T., Main Street Bar and Grill Revisited
by Jeff S 29 Dec '22

29 Dec '22

That's a very thoughtful act, Bill. We're all going to miss Cheryl. And I, in particular, am going to miss the Black and Bleu burger and a good on-tap IPA to wash it down with. On Wed, Dec 28, 2022, 9:36 PM Bill Inderrieden via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > > > In an effort to show our last patronage, Jeff Jonas and myself went to > dinner at Main Street Bar and Grill in Ocean, NJ. > > Representing VCF, a letter of recommendation, pictures of our Festivus > visit, and a gift card were presented to Cheryl, > our loyal server, as a parting gift. > > She said to us that Friday, December 30th, is the last business day for > the bar, so if you want to make a last visit, > you have only two days to make the trip. > > > Cheryl is moving to Virginia on Saturday and not looking back. We wish > her good wishes and best of luck. > > Bill Inderrieden > > > > >

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Tech Luminaries that we lost in 2022
by Jeffrey Brace 29 Dec '22

29 Dec '22

The late David Walden appeared at VCF East in 2018. Ken Gagne included him in an article with others. The article was published today: https://www.computerworld.com/article/3682772/14-tech-luminaries-we-lost-in… ========================================= Jeff Brace VCF National Board Member Chairman & Vice President Vintage Computer Festival East Showrunner Vintage Computer Federation is a 501c3 charity https://vcfed.org/ <http://www.vcfed.org/> jeffrey(a)vcfed.org

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Slightly O.T., Main Street Bar and Grill Revisited
by svcatitc＠aol.com 29 Dec '22

29 Dec '22

In an effort to show our last patronage, Jeff Jonas and myself went to dinner at Main Street Bar and Grill in Ocean, NJ. Representing VCF, a letter of recommendation, pictures of our Festivus visit, and a gift card were presented to Cheryl, our loyal server, as a parting gift. She said to us that Friday, December 30th, is the last business day for the bar, so if you want to make a last visit, you have only two days to make the trip. Cheryl is moving to Virginia on Saturday and not looking back. We wish her good wishes and best of luck. Bill Inderrieden

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May you all have a Merry Christmas and a Happy New Year
by Christian Liendo 27 Dec '22

27 Dec '22

I hope everyone is nice and warm, because it is COLD!!!!! If you got yourself a nice present related to the hobby then please share. Its always nice to see what new things people got. Just remember April is not that far away.

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