Antenna Amplifier (CB26118E)

This circuit for analog VHF televisions was found in the 1989 Radio Electronics Experimenter magazine. It also works for FM receivers.

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Arc Suppressor with SCR (CB13840E)
The circuit shown in the figure suppresses arcs in contacts when inductive loads are switched. The SCR can...
Operational Relay Driver (CB11901E)
In the figure we show how to activate a relay from the output of a common operational amplifier when...
Astable Multivibrator (CB21104E)
Found in American documentation, this basic circuit uses general purpose transistors. The circuit...