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Hi, some of us beside collecting vintage computers, like to build or own computers, just like Steve Woz or Mr. Sinclair did one day, we still can get some discrete components and old processors like the Z80 or 6800 or maybe take parts from savaged old computers. Attached is a picture of my home...

I have tried several times to load programs from audio port, what I do is I save my programs on the PC as wav file format using the line in of the sound card and audio reccorder in my PC, it reccords all the tones frequencies, then when I try to load it on the Apple II+ it freezes up or some...

Hi, I have an 80 column Apple II video card I would like to convert from PAL to NTSC, it is based on the Motorola MC6845, any Idea how can it be changed?, will changing the clock frecuency to the MC6845 be enough or the programing of the internal registers of the MC6845 have to be changed as...

I have an issue with and Apple 80 column card, it's a Digicard 80 column card, it uses an MC6845 (CRT video raster), for the video, it has 2 rom chips 2732 I believe, It was made in Australia, I bought it on ebay from a guy in Australia, I just realize they have PAL system over there, well I'm...

Hello every body, I'm glad I found this site, it looks there is alot of people with same interests and hobby as myself, an will be nice to share experiences with all of you. I have special interest in vintage computers as well, specifically the 8 bit ones, they are a lot of fun to program and...