This Power supply sources from 500 to 1,000 mA according the transformar and was found in a publication of the year 1958. The diodes can be now the 1N4004 and the transistor should be mounted on a heatsink.
Found in an Australian documentation from 1991, this circuit was sold in a kit at the time. It is a...
Found in a RCA manual from the 1960s, this circuit uses components from that time. It can generate...
This circuit makes it possible to recover programs recorded on cassette tape as was common in MSX...