Info needed on SWTP & IA

Hans wrote: While filling up my new storage some stuff, I had already forgotten, did show up. One is a SWTP 6800 machine (just the barebone Mobo and some cards) - in fact it was not forgotten, just collecting dust. So this SWTP was once working well, until the clock generator chip did stop function. I tried to make up a replacement from TTLs, just it never really worked. Now all I still can find are the boards itself - no documentation, no nothing. What clock chip was used ? And has maybe anyone a spare ? I'm really sorry for my bad memory. Hans, I know I have a set of schematics for the MPU-A and think I have a set for the MPU-B. Which SWTPC MPU board do you have? I also have schematics to the Control PCB (300 baud bit boffing a PIA) to use the MIKBUG or SWTBUG on the MPU. Also other relevant SWTPC docs. Let me know what you need and how soon. Bill Dawson whdawson(a)mlynk.com