Missing Pins on Intel 387 Chip
Does anyone know where I can find a pin layout for an Intel 387 Processor? The one I have has two outside pins (on different sides of the processor) missing, and I read somewhere you can still use the...
View ArticleROM Switchers for C64/SX-64 (4xKERNAL, 2xCHAR, BASIC)
Hello everyone, (I had these for sale on Lemon64 a while back and forgot to repost here) I was looking for a ROM switcher some months back since I have run low on spare working BASIC and Character ROMs...
View ArticleVCF East XII pictures
VCF East XII was held March 31-April 2. Around 500 people were there. Adam Michlin's pictures: http://ceos.io/vcf/east/ Dave Riley's pictures: http://oscar.the-rileys.net/VCF%20East%20XII%20Photos/ Dan...
View ArticleEGA on RGBS monitor?
I got a 286, a commodore pc30-iii, that came with an ATI EGA Wonder card. I presume it is an ok card for a 286, but I have my setup all connected with RGBS. I have to admit I've never dabbled with EGA...
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Microsoft Systemcard tips/information/manual (IBM 5150)?
I have this card that came with an IBM 5150 I found at a flea market a few years ago that I'm just starting to work on (click for big) It has a few functions: - 256k of expansion memory (with the...
View ArticleSWTPC 6800/6809 User Group/Mailing List?
I acquired a SWTPC 6800 recently (finally!) and I've scanned in some of the documentation I got with it. There's still more to come but I was wondering if there is an active mailing list or user group...
View ArticleOPL3 delays between writes
I have read in several places that the OPL3 chip does not need any delays between register writes or if it does it only needs 0.28us of delay after a data register write. However while trying to get...
View ArticleIBM AT - Advanced Diagnostics Disk
Like a few other people around here, I was lucky enough to pick up an unused IBM AT. It works great, but the HDD it came with is completely unformatted. Unfortunately, I don't have the ability to write...
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Help Wiring A Turbo Switch/LED and MHz Display
Evening, So I'm having real trouble re-wiring my turbo SW/LED and MHz Display. I took photos of the setup when I took the case apart, but my phone got stolen so I'm at square one. I'm hoping some one...
View ArticleThinning the Herd...
Welp. I'd rather not ship either of these, so these are local pickup only. Sorry. Here's what I've got: Early 1984 Atari 800XL with 1050 Disk Drive and 1027 Printer. Atari 800XL works great. Comes with...
View ArticleRusted off chip legs
Hey guys, With the second SWTPC system I got in December, I got a whole bunch of spare, NOS ICs. Unfortunately everything was stored in a humid environment, and the foam the chips were secured in long...
View ArticleI Found a Way!
Its a easy way of setting up all my Towers & saving a lot of space. I can easily run all my Legacy Computers off just one Monitor, Keyboard & Mouse. See it here:...
View ArticleMy very rare 486 lives with my Pentiums!
I found a way to connect up to 8 computers together. Sharing the same monitor, Keyboard & Mouse. No conflicts, easily switch to any of 8 Computers, no matter what the OS or design. Yes my 486 can...
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Informer 207/102-v22 smart terminal with VT52 & VT-102 epoms
Hi all, Well late 2016 this very cute portable smart terminal / workstation as Informer called it, came up for sale in Perth, Australia. I was lucky enough to purchase it. Seeing it has a CRT rather...
View ArticleVCF Southeast - April 29-30
Vintage Computer Festival Southeast is April 29-30 featuring former Apple Macintosh exec Andy Hertzfeld and former Tandy exec Don French. I'll be there on behalf of VC Federation, and you should be...
View ArticleWhere do you guys get all your vintage gear?
So i'm a bit new to this, all i got is a commodore 64, power brick, and a box of games on disk, so, I dont know where people get the stuff, aside from ebay, or knowing another collector personally, do...
View ArticleFirst foray into building a 386
As the title says, this is my first foray into building a 486... I got everything together, the board posts, BIOS is good.....but its not seeing the floppy drives and giving a HDD controller error on...
View ArticleBest DOS and Windows 98SE display cards.
I got a Pentium 2 and a k6-2. I know that's a generation after Pentium, but beggers can't be choosers and that's what I found. However, they both has ISA, PCI and AGP slots and I intend to use the k6-2...
View ArticleLinux-SBC home brew 486 project
Hi Making some good progress on the Linux-SBC home brew 486 project. Looking for people to review the schematic and/or PCB layout to find errors before getting initial PCBs made. We are getting close...
View ArticleAstec AC9231 PSU
Hi folks, I bought this as a standby for an AC8151 since it puts out +5@6a, +12@2.5A as well as separate +-5 and +-12 rails so handy for anything containing 4116 DRAMs. There's a sticker on it that...
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