- vcf-midatlantic - lists.vcfed.org

Ordering Snark Barker MCA (Sound Boaster clone) PCBs -- Want One?
by Alexander Jacocks 30 Nov '20

30 Nov '20

All, I'm in the process of ordering PCBs for the Snark Barker MCA (microchannel), which was just announced, here: https://twitter.com/TubeTimeUS/status/1333123576346468352 The design files and BOM can be found here: https://github.com/schlae/snark-barker-mca I'll be ordering from PCBway, who does gold fingers, so that the boards will be able to be able to be repeatedly inserted, without wearing out the contacts. Is anyone else interested? The cost (at quantity 5) would be about $34+shipping, per PCB. The cost should go down with a bigger order, should more than 4 others want boards. I could probably be convinced to make the parts order, as well, if folks want. Thanks! - Alex

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UPS (Uninterruptible Power Supplies) was: How's Everyone Doing
by Jeffrey Brace 30 Nov '20

30 Nov '20

I decided to make a new thread since there is a lot of interest in this topic, etc. @Dave Mcguire. Thanks for the tip on where to buy replacement batteries. As far as I know APC is the most recommended brand. I see others are using Panasonic. I'm curious to know which brands everyone recommends or discourages? On Fri, Apr 24, 2020 at 1:02 PM Mike Loewen via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > On Fri, 24 Apr 2020, Ethan O'Toole via vcf-midatlantic wrote: > > > I used to work for a large music streaming provider and we had thousands > and > > thousand of servers. The data center would put out a notice that they're > > going to do UPS maintenance or Switchgear maintenance... and usually > that > > night we would have maybe up to 20 servers have issues. Hard hang or > maybe a > > reboot. Meanwhile everything looked okay. > > At one point, I had a production server in the data center, an IBM > RS6000 > with redundant power supplies (2). The techs were moving systems to a > different power bus and unplugged one of the supplies: my system promptly > shut > down. It turned out that my system required THREE power supplies before > redundancy was in effect. Oops. > > > Mike Loewen mloewen(a)cpumagic.scol.pa.us > Old Technology http://q7.neurotica.com/Oldtech/ > -- ========================================= Jeff Brace Vice President & Board Member, VCF East Showrunner Vintage Computer Federation http://www.vcfed.org/ jeffrey(a)vcfed.org -- ========================================= Jeff Brace Vice President & Board Member, VCF East Showrunner Vintage Computer Federation http://www.vcfed.org/ jeffrey(a)vcfed.org

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VCF -MA Committee Member Election Begins
by Dean Notarnicola 28 Nov '20

28 Nov '20

With this email, the committee member election has begun. Please click the following link and carefully read the directions to properly record your vote for the two open seats: https://docs.google.com/forms/d/e/1FAIpQLSdmBX-tQhZuDIs6fiYPPfB5xUPiiWOzovn… Voting commences immediately and closes at 11:59 pm on December 6th. Winners will be announced December 12th at the annual VCF Festivus celebration. More information here: http://vcfed.org/wp/2020-elections-for-steering-committee/ <https://www.google.com/url?q=http://vcfed.org/wp/2020-elections-for-steerin…> Please ensure that you enter the same email address below that you use for the VCF MidAtlantic Listserv. If you do not use the same email address your vote will not be valid. Only one vote per email address will be recorded. If more than one vote is made, only the last one will be accepted. Thank you all for participating! Regards, Dean Notarnicola VCF-MA Committee Chairperson

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Attic finds :-)
by Neil Cherry 27 Nov '20

27 Nov '20

1 - PT68K-2 loads with OS9 2.3 (I think it's OSK at this point) 3 - I8039 & 8243 <- Wierd, not a chip I typically worked with 1 - NSC8073 Tiny Basic chip 3 - I8052, I think these have BASIC on them 1 - 68020-12 & 68881-12 1 - PEP Eurobus system (68K, 10 serial, 1 LPT, 720K? 5 1/4 Floppy, 20M Hard Disk) 2 - 8088 XT mother boards (?), I never had a DOS system other than my work machines I have to search for my Hercule Video Card. Not sure where that is. I have found my other PT68K-2 with Humbug/OS9 roms. I'll need to replace the 48T08 chips or just drop in 6116 (100 ns) so I can start playing. The PT68K-2 is in an AT case with an AT Power Supply. It must weigh at least 40 pounds. If the floppy drives are belt driven then they're useless but I think this is when the first pancake drives arrived. This system has a 720K 5 1/4 & a 720K 3 1/2. Anyone know the best way to resurrect an old hard drive that hasn't run in at least 30 years? What I didn't find my other 6809 boards or my parts for building those 35 year old boards. I have them somewhere. -- 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] 1702 eproms (Bill Degnan)
by Bill Degnan 27 Nov '20

27 Nov '20

All...thanks for your replies and suggestions. I bought a batch from Jeff G. Bill D On Thu, Nov 26, 2020, 1:46 PM MikeWillegal via vcf-midatlantic < vcf-midatlantic(a)lists.vcfed.org> wrote: > If you can’t find them elsewhere, I’ve had good luck with the supply from > Unicorn Electronics. > > regards, > Mike Willegal > > > > I am looking for 8 or so 1702A eproms if anyone has some for sale but I > > will buy more if the price is right. They do not have to be > rare/ceramic. > > I will pay more for tested / readable. > > > > Please contact me privately if you have a tube of these avail via > > https://vintagecomputer.net/contact.cfm. > > > > I may also need 2708's. > > > > Shipping to Landenberg, PA. > > > > Thanks > > > > Bill Degnan > > > > > > > >

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Happy Thanksgiving to All!
by Jeffrey Brace 27 Nov '20

27 Nov '20

I hope that everyone had a safe, happy and healthy Thanksgiving and I hope that you didn’t stuff yourself too much and had room for dessert! -- ========================================= Jeff Brace Vice President & Board Member Vintage Computer Festival East Show-runner Vintage Computer Federation is a 501c3 charity http://www.vcfed.org/ jeffrey(a)vcfed.org cell: 732-759-1783

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Re: 1702 eproms (Bill Degnan)
by MikeWillegal 26 Nov '20

26 Nov '20

If you can’t find them elsewhere, I’ve had good luck with the supply from Unicorn Electronics. regards, Mike Willegal > > I am looking for 8 or so 1702A eproms if anyone has some for sale but I > will buy more if the price is right. They do not have to be rare/ceramic. > I will pay more for tested / readable. > > Please contact me privately if you have a tube of these avail via > https://vintagecomputer.net/contact.cfm. > > I may also need 2708's. > > Shipping to Landenberg, PA. > > Thanks > > Bill Degnan > > >

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Re: 1702 eproms
by Jonathan Sturges 26 Nov '20

26 Nov '20

Bill, I've got extra 2716s (with some 2516s and 2616s sprinkled in), if that is close enough. Happy to contribute what I can. I'm in northern VA so shipping would be fast. -Jonathan

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1702 eproms
by Bill Degnan 26 Nov '20

26 Nov '20

I am looking for 8 or so 1702A eproms if anyone has some for sale but I will buy more if the price is right. They do not have to be rare/ceramic. I will pay more for tested / readable. Please contact me privately if you have a tube of these avail via https://vintagecomputer.net/contact.cfm. I may also need 2708's. Shipping to Landenberg, PA. Thanks Bill Degnan

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Displaywriter documentation
by Jim Scheef 25 Nov '20

25 Nov '20

Hello all, For those of you restoring an IBM Displaywriter (dedicated word processor), here is a chance to get some manuals at a more than reasonable cost (less than $11 in your mailbox). https://www.ebay.com/itm/164517650798 Jim

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