This circuit with 10 MHz and 1.25 MHz TTL outputs was found in an American documentation from the 1980s. The used integrated circuit is uncommon today.
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...