Found in a1968’s Burr Brown documentation, this shield uses an integrated circuit from that time, which is uncommon today.
This sequential beacon was found in an 80's Radio Electronics. The circuit can be designed using modern...
This circuit consists in a full-wave bridge rectifier or Graetz Bridge as its is also called. The...
This simple radio with 1 germanium transistor was found in a Japanese documentation from 1967. The coil...