This transistor class B 5 W amplifier was found in a 1969 Mullard documentation. The transistors are from that time, and modern equivalents may eventually be used.
This oscillator for frequencies up to a few tens of kilohertz was found in a 1970s documentation. The...
This countdown electromagnetic ring launcher was found in an Electronic Hobbyst Handbook from...
This circuit was found in an old Electronic Design used to apply digital signals to an analog...