Blog

C64 Diagnostic 586220 without Ram Check

I was testing a lot of C64 test harnesses. It was a bit annoying that the diagnostic cartridge spends most of it’s time running various RAM checks which are not of relevant in my case. It would be great if the RAM checks could be skipped.

Amiga 1200 and Other Stuff

This is awesome. For a very long time I yearned for an Amiga 1200. On Wednesday I received an alert that somebody put up an offer for an Amiga 1200 …

And Power Supplies Again

I bought another two power supplies PSU 251053-11 on eBay. One for EUR 13.99 + 8.89. The second for EUR 16.60 + 13.00. The first one has already arrived. And …

C64 PSU 251053-11 Replacement Board

I had reworked the design of TMO2018 a couple months ago to run with a OKX-T/3-D12N-C. My results are on Github. I ordered the boards again from PCBWay: The board …

More C64 Power Supplies

In the past months I bought some more power supplies on eBay and Willhaben: One is a 902503-06, which I bought from someone on Willhaben. Unfortunately I didn’t note how …

C64, The Second

The second C64 I bought on eBay has arrived a couple days ago. Unfortunately it is not in the best condition. Many electrolytic capacitors have started to leak. It is …