Manual Clock 7400 (CB22411E)

This circuit to produce clock pulses is manually driven. The circuit is TTL and must be powered by 5 V.

Two Transistor MW Radio (CB12476E)
This simple MW radio does not need an external antenna to pick up local stations. It was found in a...
MW Micro Radio (CB11836E)
This simple receiver picks up local MW stations with playback on a small speaker. The antenna must...
Converter Stage of a Transistor Radio (CB937E)
This is a converter stage found in old transistor superheterodyne radios. The circuit is for...