channelmaniac
Veteran Member
I already had the blank PCB (EVK-100) and had a 3+ year struggle finding anything about it. I found a guy in his mid-80s at the time who had a web site that wasn't touched in 10 years. I emailed him and he had already sent his documentation to a guy in England. That guy gave me a copy of the docs. In the meantime, I found one in the museum back in Mountain View, CA, that never answers emails... and one in a university museum in Stuttgart, Germany. The university folks offered to send me high res photos of their board so I could see all the resistor color codes and try to build mine. After I got the docs I forwarded them to the university and they not only fired up their computer board, but dumped the ROMs and sent me the code.
Now I have the board, code, and build/operation docs, but no S6834 EPROMs or the S6830 PROM with the monitor code. Found 2 MC6834 on eBay a few years back. Nothing since.
Fast forward to joining an e-waste / recycling group on Facebook and a user posted up a slew of white/gold and purple/gold ceramic EPROMs. Zooming in... FIVE S6834 EPROMS! He also had a complete EVK-300. I took a gamble and sent money to him in New Zealand and now have the EVK-300 to go with my blank PCB.
Now I have the board, code, and build/operation docs, but no S6834 EPROMs or the S6830 PROM with the monitor code. Found 2 MC6834 on eBay a few years back. Nothing since.
Fast forward to joining an e-waste / recycling group on Facebook and a user posted up a slew of white/gold and purple/gold ceramic EPROMs. Zooming in... FIVE S6834 EPROMS! He also had a complete EVK-300. I took a gamble and sent money to him in New Zealand and now have the EVK-300 to go with my blank PCB.