SCR Steady Hand (CB22098E)

This “test your nerves” game was found in old documentation. The SCR can be of any sensitive type, for example series 106.

Three Transistors MW Radio (CB12261E)
This simple MW radio was found in a 1975 publication, but it can be mounted with BC548...
Power Oscillator 741 (CB15616E)
This circuit is basically the same as the previous configuration (CB15616E) with a power stage with...
One Transistor Receiver (CB12824E)
This experimental receiver works with alternative sources of energy or a single cell of any type....