November 2019 - vcf-midatlantic

Repair Workshops 2020
by Jeffrey Brace 17 Nov '19

17 Nov '19

The next workshop will be January 25 & 26 in the CDL Hackerspace. There is a limit of 20 tables at one time, so be sure to sign up to guarantee a table. Signup Sheets: January 25 & 26, 2020: InfoAge CDL Hackerspace building 9059 < https://docs.google.com/spreadsheets/d/1LmYNLLK6CEOLCeOQCClhe1J20gpmVlyzmSs… > February 15 & 16, 2020: Hunt Valley, MD at Bob Roswell's System Source: < https://docs.google.com/spreadsheets/d/1cVBh27hzT1P53BCorZXcK3cZQVwPtwWLLX6… > It is about 30 minutes north of baltimore and 3 hours from InfoAge. Details will be e-mailed to the list soon. March 7 & 8, 2020: InfoAge CDL Hackerspace building 9059: < https://docs.google.com/spreadsheets/d/1DySkGulduRUxJuPwK2RUEdP_yKD8YiDEn7K… > April 4 & 5, 2020: InfoAge CDL Hackerspace building 9059 < https://drive.google.com/open?id=1VTM4R1HBKCcal7FAG_SslXv4jPAyuvygIkVErAKTp… > -- ========================================= Jeff Brace Vice President Vintage Computer Federation

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Latest toy(s)
by Neil Cherry 16 Nov '19

16 Nov '19

Did a bit of Ebay shopping and offer the guy 75$ per board (plus the shipping) for 2 1979 Motorola 68B09 boards (looks to be an Exorset board). This should prove to be a bit of fun as I can't find any docs for these boards but they look like they follow along with Motorola's ref design of 6809, 6821, 6850 and 6840 (RAM/ROM of course). Not sure what's on the ROMs yet. Probably some kind of control program for machinery. I'll copy them when I get a chance and then burn a monitor ROM. -- Linux Home Automation Neil Cherry ncherry(a)linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies

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Re: [vcf-midatlantic] For sale, Dave Dunfield's collection
by Neil Cherry 15 Nov '19

15 Nov '19

On 11/15/19 2:20 PM, Sentry TV via vcf-midatlantic wrote: Dave is from Canada. -- Linux Home Automation Neil Cherry ncherry(a)linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies

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For sale, Dave Dunfield's collection
by Neil Cherry 15 Nov '19

15 Nov '19

Not sure how many of you would know this individual but old timers like me probably do. From the CoCo group: On 11/11/19 4:46 PM, Salvador Garcia via Coco wrote: I just came across this announcement, thought I'd post here in case anyone is interested. Dave Dunfield is selling his 30 year collection. Info here: http://www.classiccmp.org/dunfield/sale/index.htm Salvador -- Linux Home Automation Neil Cherry ncherry(a)linuxha.com http://www.linuxha.com/ Main site http://linuxha.blogspot.com/ My HA Blog Author of: Linux Smart Homes For Dummies

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Festivus Who's Bringing What spreadsheet
by Jeffrey Brace 15 Nov '19

15 Nov '19

Tell us what you are bringing here: < https://docs.google.com/spreadsheets/d/1x0oSxqZXh8tmqqbUsP3KS3OywiNsEAOOmtq… > The other e-mail about EventBrite/PayPal is for payment only and separate. -- ========================================= Jeff Brace Vice President Vintage Computer Federation

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Re: [vcf-midatlantic] Items available at Festivus
by Jeffrey Brace 15 Nov '19

15 Nov '19

On Fri, Nov 15, 2019 at 10:33 AM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > Well apparently that's what everybody wants since we can't set up tables > with stuff and there's not enough space > I never said that you can't setup tables, I just said that I don't want it to get out of control. I want to control where it goes so that it doesn't get crowded in the event space (which is meant for eating, drinking and socializing) and doesn't take tables that are meant for eating or food. Last year there were 4 tables where someone put stuff and never asked anyone and we had not enough room to sit and eat. I'm more than happy to supply 1 or 2 tables for people. If there is enough demand, then we can use the adjacent room which has plenty of space. Again, I just don't want people bringing stuff without asking and putting wherever they please. If you ask, then I can find a space and accommodate anyone. > > Sent from: > My extremely complicated, hand held electronic device. > > > On Nov 15, 2019, at 8:52 AM, murph via vcf-midatlantic < > vcf-midatlantic(a)lists.vcfed.org> wrote: > > > > > > > > ----- Original message ----- > > From: Evan Koblentz via vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org > > > > To: vcf-midatlantic <vcf-midatlantic(a)lists.vcfed.org> > > Cc: Evan Koblentz <evan(a)vcfed.org> > > Subject: Re: [vcf-midatlantic] Items available at Festivus > > Date: Thursday, November 14, 2019 22:53 > > > >>> will make sure that I keep anything that I have for sale in my van and > > just let other people know what I have when the time comes > > > > LOL ... sounds seedy > > > > > > ------------------------ > > > > I'm imagining a windowless panel van with "OLD COMPUTERS" badly painted > on the side. > > -- ========================================= Jeff Brace Vice President Vintage Computer Federation

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Re: [vcf-midatlantic] Items available at Festivus
by Evan Koblentz 15 Nov '19

15 Nov '19

>> will make sure that I keep anything that I have for sale in my van and just let other people know what I have when the time comes LOL ... sounds seedy On Thu, Nov 14, 2019, 4:40 PM Sentrytv via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > I will make sure that I keep anything that I have for sale in my van and > just let other people know what I have when the time comes > > Mike R > > Sent from: > My extremely complicated, hand held electronic device. > > > On Nov 14, 2019, at 2:08 PM, Jeffrey Brace via vcf-midatlantic < > vcf-midatlantic(a)lists.vcfed.org> wrote: > > > > I want to stress that selling/buying during Festivus is allowed, but > there > > is limited table space and I want people to remember that this is > primarily > > a party. > > Last year there was too much stuff on tables which inhibited places to > eat, > > put food and move around. > > I do however have an idea of where we can put stuff for those who need 1 > > table. > > Everyone, please ask me first before bringing a large number of stuff. > > I figure out if there is space and tables available. > > Just remember this space and tables are limited and I won't let it turn > > into an uncontrolled swap meet. > > > > > > On Tue, Nov 12, 2019 at 9:55 PM Jeff Galinat via vcf-midatlantic < > > vcf-midatlantic(a)lists.vcfed.org> wrote: > > > >> Since I have missed the last few workshops due to scheduling conflicts > and > >> since some of you have expressed interest in some of the vintage > computing > >> items I posted a few months ago, I will be attending Festivus to deliver > >> those items before I move to Tucson. There are now some additional > items on > >> this list so please let me know if you are interested in any of this > stuff > >> so I can bring it. Feel free to make an offer if you feel the price is > out > >> of line. I will probably list a few more items before the event as I > >> uncover them. > >> > >> Altair Clone with optional cassette interface $325 > >> Please see altairclone.com for details > >> > >> Apple //c with power supply $100 > >> Composite Apple //c monitor with stand $40 > >> $130 for the above pair > >> (Been in storage for 2 years - will test before Festivus > >> > >> ECT S-100 chassis with 10 slot ECT passive terminated backplane & power > >> supply $125 > >> > >> ZETA 2 - Z-80 SBC with CP/M in ROM, 512kb RAM, floppy disk controller > >> Assembled & tested $115 > >> ParPortProp board for above - adds SD card storage $40 > >> Details here => < > http://www.malinov.com/Home/sergeys-projects/zeta-sbc-v2> > >> > >> Lee Hart's 1802 Membership Card early version - $35 > >> > >> Q & T - 8" Floppy drive enclosure power cord, fan, barrier strip for AC > >> power but NO POWER SUPPLY. Holds 1 - 8" full height drive or 2 - 8" half > >> height drives. $20 > >> > >> HP 6100Cse SCSI flatbed scanner new in box - perfect for vintage desktop > >> publishing $20 > >> > >> Assorted 4164, 41256 and 411000 type dynamic RAM NOS stored in tubes $5 > for > >> quantity 10 of any type > >> > >> Protec PRO-83 Z-80 microprocessor trainer with on board S-100 bus > expansion > >> capability. Tested & working. A French manual is included along with an > >> English manual for its predecessor, the PRO-80. Keyboard operation is > the > >> same for both units. $80 > >> > >> Quantronics/PSS 8K S-100 boards passed 2 types of memory tests no errors > >> (2 available) $30ea > >> > >> Maximize BBX Computer - Modern day BASIC computer with case, power > supply, > >> keyboard & speakers- $60 > >> Details here:< > >> > >> > https://www.kickstarter.com/projects/818225433/maximite-bbx-the-modern-day-… > >>> > >> > >> > >> Regards > >> > >> Jeff Galinat > >> > > > > > > -- > > ========================================= > > Jeff Brace > > Vice President > > Vintage Computer Federation > >

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More Stuff available at Festivus
by Jeff Galinat 15 Nov '19

15 Nov '19

Hi All, I found a few more items in storage. I will only be bringing the items that have definite buyers so please let me know if you are interested and I will bring it. I will not be setting up a table, the items will remain in my van until they are transferred to the buyer. Apple ImageWriter II in box $25 (been in storage for at least 10 years) Commodore Modem 300 in box $5 Princeton Graphics 17" LCD monitor with Digital FlatPanel Interface (not VGA, noy DVI, not HDMI - Free Qty 2 - IBM 5170 PC/AT chassis (one has a original MB, the other has a 386MB, I think - $50 for the pair A couple of large 17" to 19" CRT monitors - Free I will list more stuff as I uncover it. Regards, Jeff

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Items available at Festivus
by Jeff Galinat 15 Nov '19

15 Nov '19

Since I have missed the last few workshops due to scheduling conflicts and since some of you have expressed interest in some of the vintage computing items I posted a few months ago, I will be attending Festivus to deliver those items before I move to Tucson. There are now some additional items on this list so please let me know if you are interested in any of this stuff so I can bring it. Feel free to make an offer if you feel the price is out of line. I will probably list a few more items before the event as I uncover them. Altair Clone with optional cassette interface $325 Please see altairclone.com for details Apple //c with power supply $100 Composite Apple //c monitor with stand $40 $130 for the above pair (Been in storage for 2 years - will test before Festivus ECT S-100 chassis with 10 slot ECT passive terminated backplane & power supply $125 ZETA 2 - Z-80 SBC with CP/M in ROM, 512kb RAM, floppy disk controller Assembled & tested $115 ParPortProp board for above - adds SD card storage $40 Details here => <http://www.malinov.com/Home/sergeys-projects/zeta-sbc-v2> Lee Hart's 1802 Membership Card early version - $35 Q & T - 8" Floppy drive enclosure power cord, fan, barrier strip for AC power but NO POWER SUPPLY. Holds 1 - 8" full height drive or 2 - 8" half height drives. $20 HP 6100Cse SCSI flatbed scanner new in box - perfect for vintage desktop publishing $20 Assorted 4164, 41256 and 411000 type dynamic RAM NOS stored in tubes $5 for quantity 10 of any type Protec PRO-83 Z-80 microprocessor trainer with on board S-100 bus expansion capability. Tested & working. A French manual is included along with an English manual for its predecessor, the PRO-80. Keyboard operation is the same for both units. $80 Quantronics/PSS 8K S-100 boards passed 2 types of memory tests no errors (2 available) $30ea Maximize BBX Computer - Modern day BASIC computer with case, power supply, keyboard & speakers- $60 Details here:< https://www.kickstarter.com/projects/818225433/maximite-bbx-the-modern-day-… > Regards Jeff Galinat

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11/9 & 11/10 Workshop
by David Gesswein 14 Nov '19

14 Nov '19

I got the Museum 3B1 operating again. The hard drive wasn't spinning up. I took the dead drive home and did a quick poke at it. Its not a stiction type problem, it just doesn't seem to be trying to spin up. The original drive was 40 MB. I put in a MFM hard drive emulator emulating the biggest drive the machine supports without modifications, 67 MB. I installed the OS, development tools, some games we had on our machine, utilities such as less, compress compatible with "current" compress etc, script to allow setting Y2k date, Kermit, and some demo programs which display slides with sales/promotional material. The basic I found was a DD copy which I haven't figured out the magic to write it to a floppy that can be used to install it. I ran out of time to install some of the things discussed such as Emacs. The emulator does loose the distinctive sounds of the MFM drives. What do people think of emulated sounds? I've thought about adding it to the emulator but wasn't sure if it was just a gimmick. I also replaced the soldered in coin cell battery with a battery holder and coin cell. The information I found online said it used a 2325. I put in a BR2330. The actual battery I found in the machine was a CR2430 which has slightly higher capacity. My understanding is BR batteries are a little less likely to leak so I like to use them though they have slightly less capacity. I cleaned the dust out and it still worked. The foam that they put in instead of a left side fan is starting to deteriorate. It does not spring back if touched but isn't quite to turning to dust. I will replace it next time I open the case. My original plan was to route an Ethernet cable from the emulator down into an unused expansion slot to allow easy access to update/backup the image on the emulator. I found the machine had all the slots full so couldn't do that. One has a memory board, the second a RS-232 & memory board, and the third the DOS-73 PC DOS board. For now the cable tucked behind the drive which requires the case to be opened to get to it. If we decide that we want better access there are a couple options. 1) Snake a cable out through the case such as the non used left side fan. Its convenient and won't be too visible but probably not the best option since I can be seen. 2) See if a smaller cable such as USB can still be snaked into the center expansion slot which has an easy to remove cover. The beaglebone in the emulator supports Ethernet over USB. 3) Wireless. The 3B1 has extensive shielding so probably would have to remote the antenna to outside the metal drive enclosure. This is probably overkill. I gave a quick walk-through to Jeff on what can currently be demoed. Future plans are to finish installing useful programs for demo on an emulator at home and update the image in the museum machine next time I visit. I'll also document what is installed and how to demo. I also checked out the straight 8. The programs in memory were corrupted but it seemed to work fine when I reloaded them. I left it with the moving AC bits program and the punch letters on paper tape program loaded.

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