September 2013
Sample of 5VDC-9VAC Convertor
- Sun, 2013-09-15 17:50
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Example of using a 555 and a couple of transistors to make a 5V DC to 9VAC 1A convertor.
Schematics for C64 Plus with 80 Columns
- Fri, 2013-09-13 22:30
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More schematics from 30 years ago. This is for a computer known internally as the C64+ or C64 Plus and has built in 80 column support. Unfortunately there is a page missing.
CPM Z80 Cartridge for the Commodore VIC-40
- Fri, 2013-09-06 15:56
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More of those sets of drawings that I found in a box dating back 30 years to when I worked at Commodore Business Machines in West Chester PA.