June 2016 - vcf-midatlantic

Re: [vcf-midatlantic] K-Fest - who's going
by Todd George 27 Jun '16

27 Jun '16

> Date: Sun, 26 Jun 2016 12:39:58 -0400 > From: Jeffrey Brace <ark72axow(a)gmail.com> > Subject: [vcf-midatlantic] K-Fest - who's going > > Just wondering who's going so that others in our group might be interested > in meeting up etc. I'll be there. Driving so I can take/acquire mass quantities of stuff that would be difficult to transport via plane/convince TSA is not bomb materials. -Todd

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Bendix G-15 was Re: Univac, our first real work!
by Brian L. Stuart 26 Jun '16

26 Jun '16

On Thu, 6/16/16, David Riley via vcf-midatlantic <vcf-midatlantic(a)lists.vintagecomputerfederation.org> wrote: > Our Bendix G-15, however, is tube-based (and drum-based, > which will probably be the bigger hurdle to getting it > running). True. The best bet for restoring the G-15 would be to construct a drum emulator that would interface with the rest of the machine using the same timing and signal levels as the original drum. Use that to get the rest of the machine running. Then if the original drum turns out to be unrestorable, we still have a running G-15, and if the original drum can be restored, the emulator can still be used to minimize any additional wear and tear on the original. I have no idea, however, how much of the original software still exists. I've got a few of the paper tape cartridges and I've seen some references online about software, so there is hope. Of course, writing software is a lot more fun than running old software, so even if nothing still exists, restoration would still be very interesting to consider. BLS

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FS: GR Electronics Type 8 Pocket Terminal (RS-232 serial terminal)
by Systems Glitch 26 Jun '16

26 Jun '16

link: http://www.ebay.com/itm/272287424144 I've had this little pocket terminal for a while, used to use it as a debug display when doing low-level debug on vintage systems. It's got a TI Graphing Calculator style keyboard and 8 character bubble magnified 16 segment display. Switch settable to work at 110 or 300 bps. +5V is supplied over the RS-232 cable (pin 9 +5V, pin 10 GND) and the terminal uses around 190 mA. The keypad seems a little stiff/insensitive, not sure if that's just how this particular keypad is, or if it could use a disassembly/cleaning. Thanks, Jonathan

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FS: Robot Research 800H RTTY/SSTV Unit (8085 based, parallel keyboard)
by Systems Glitch 26 Jun '16

26 Jun '16

link: http://www.ebay.com/itm/272287313991 Figured I'd post this here since this RTTY/SSTV unit is basically a vintage computer internally -- Intel 8085 based, composite video output, old Teletype layout keyboard, et c. Lots of good parts and a very heavy-duty keyboard enclosure if someone wants to roll their own computer into the chassis, repurpose the 8085 board inside, or just use the keyboard/enclosure with a vintage computer. It appears to be functional, but I don't have a receiver for RTTY/SSTV to actually tune in a station. Keyboard works with no stuck/dead keys that I noticed. This unit has RS-232 output, don't know about input, but I suspect it could be used with a composite monitor as a RS-232 terminal with a little modification. Price based on what similar RTTY gear has sold for recently, make an offer! Thanks, Jonathan

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K-Fest - who's going
by Jeffrey Brace 26 Jun '16

26 Jun '16

Just wondering who's going so that others in our group might be interested in meeting up etc.

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Upcoming: Apple II Prototype Card
by Systems Glitch 25 Jun '16

25 Jun '16

Apparently Ian is building an Apple II card for VCF, and doesn't like most of the current prototype card offerings -- either the layout is...deficient, or they're not regularly available. I laid out a simple pad-per-hole board: http://i.imgur.com/G5QOATi.png I have a small prototype quantity on order, but I'll probably be ordering 50 or 100 in the near future, if anyone is interested. Thanks, Jonathan

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FS: Solflower SBus to VME Converter Chassis
by Systems Glitch 25 Jun '16

25 Jun '16

link: http://www.ebay.com/itm/272286199075 Six-slot Solflower VME chassis with a converter board for hooking VME boards to a SBus Sun box. Unfortunately I don't have the SBus board that makes up the other side of the interface, so I was only able to power-on test it. No idea what it's worth, so I listed it for what I've seen similarly sized desktop VME boxes go for. Feel free to make an offer! Thanks, Jonathan

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Re: [vcf-midatlantic] OT looking for an AT style case
by Connor Krukosky 24 Jun '16

24 Jun '16

Nice! That will be a fun little box. Unfortunately I don't really have anything kicking around other than an old rough PC XT chassis. I don't need it because the motherboard is shot in it. If you want that let me know. There is a PSU inside that should work too. But I am not 100% sure. Good luck! -Connor K On Jun 24, 2016 2:29 PM, Matt Patoray via vcf-midatlantic <vcf-midatlantic(a)lists.vintagecomputerfederation.org> wrote: > > Hi All, > > In am looking for an AT style tesktop or mid tower case with power supply. > > I just gotr a 486DX4-100 board with ram and would like to make an OS/2 Warp > box out of it. > > Everything found on a quick ebay seasrch is over $100 with shipping and > does not have a power supply. > > -- > Matt Patoray > Owner, MSP Productions > (330)718-3064 (mobile) > mspproductions(a)gmail.com > KD8AMG Amateur Radio Call Sign

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OT looking for an AT style case
by Matt Patoray 24 Jun '16

24 Jun '16

Hi All, In am looking for an AT style tesktop or mid tower case with power supply. I just gotr a 486DX4-100 board with ram and would like to make an OS/2 Warp box out of it. Everything found on a quick ebay seasrch is over $100 with shipping and does not have a power supply. -- Matt Patoray Owner, MSP Productions (330)718-3064 (mobile) mspproductions(a)gmail.com KD8AMG Amateur Radio Call Sign

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Mac 128K needed in DC area, pronto!
by Evan Koblentz 23 Jun '16

23 Jun '16

The Smithsonian TV channel needs a Mac 128K this Friday for a one-day shoot. It doesn't have to work but it would be helpful if it does. They will pay a good rate. Contact me privately (evan(a)vcfed.org) if you have one and can make it available quickly.

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