Recent content by HammysHangout

Every year I bring out a large collections of computers to for people to play on, with the larger venue, and more space, the reception was good last year, Looking to have more this year ! Free Play Florida is organized by Byte Amusement Group, a 501c3 Organization, one of the only shows in the...

i just recently got one of these out of a piece of medical equipment. HP Mfg P/N: 0950-9074 TEAC Floppy Drive: FD-235HF FC-1 Model # E950823 Jumpers Set: PAR, HDS, H2, H1, H

Good News! Looks like it works :D Need to find a PROM/ROM Board.. Seems i have a bazillion other cards.. just no rom. MPU/CPU Cards: 1x MPU-A Rev 4 ( 8080 ) 2x CCS Z-80 2810A ( One missing CPU/UART ) RAM: 1x MITS 1K SRAM - Doesn't appear to work.. 1x SD Systems 4K SRAM 3x 8K SRAM Boards...

I will be pulling all the cards, and powering up the caps on a variable a/c power supply slowly, watching the current draw. I have a Sencore Powerite isolated transformer i use for arcade monitor repair. Electronic repairs are not my first rodeo, but don't want to convert this thing to a giant...

I just picked up an IMSAI 8080.. Going to start working on it soon on my Twitch Channel.. Any suggestions on what I shouldn't do :D I still need to inventory all the cards i have ( i have a lot )

I recently picked up a AST Advantage PRO but missing its cover.. WHY??? It fully works , but without the top, it will most likely get scrapped, would love to save it.. Picture of case attached ( off ebay ) .. i don't need a working unit.. maybe someone has one sitting around?

I was working on a Osbourne, and found a weird "Reset" mod that was tied to UC15 Pin 19. ( CB2 ).. is there something that the Osbourne looks at on the CB2 pin on reset? After determining it was just some weird user mod, i actually just removed it.. but i still have another mod that ties into...

So, i been live streaming a commodore 8296 repair ( vods up on my youtube;https://www.youtube.com/user/ki4swy ) However, i am at the stage of getting this on bootup: I don't have a keyboard, so thinking it maybe a result of a bad 6520? So far had to to replace 5 logic chips, and both...

I am working on a Commodore 8296 and what is the minimum romset needed? I assume just the Kernel/Basic is needed? I am confused the purpose of the UE8/9/10 Paper Clip ( this i confirmed ok on the net ) Following are the Edi I looked at the eeproms i have, and the Option Rom has text ...

So, i ordered a bunch of these pcbs, fully built , got some FE2010A chips, but can't seem to get to boot.. I tried creating a updated .9.8 bios, but that didn't work at all, i when using the 0.9.6 bios it does appear to boot and try to run, but i stops with a post code of FF/A8 and i cannot...

Anybody have any documentation for this drive? I would like to make it a secondary controller but it seems i can't find any documentation on the Jumper Settings.. :(

So, friend brought over a PET 2001 ( 6540/2114 v2 ) PCB.. after replaceing all the rusted chips, and corroded rom sockets, I was able to get it backup, of course not only after i toasted my pet vet. So, needed to fix my PET since no petvet.. i know I had a bad rom, but didn't remember, so i...

Does anybody have the Source/documentation for the PetVET ? seems Mike pulled everything down from GitHub.. can't find anything, I have a PetVet that has died, and need to replace the Atmel, but need to program it first :(

So, Got a LC unit, DOA , full recap, ( PSU and Logic Board ) , system boots up, but no mouse or keyboard, I am getting 5V to the Keyboard.. I am suspecting a bad EGRET chip... can't seem to locate the Schematic, i did compare to LC II and LC III and did seem to have simular design, but not exact...

Does anybody have a IBM 750-P90 faceplate , i recently got a nice working 750, but the face is cracked :(