Emitter Follower Complementary Stage (CB25623E)

This circuit was found in the October 1993 Electronics Now magazine. The circuit can be used in a small audio amplifier.

Stable voltmeter (CB23664E)
This sensitive two-transistor circuit was found in the June 1965 Radio Electronics magazine. The...
Remote Phone Ring (CB1349E )
This circuit, obtained in an old publication, causes a second telephone bell to be played in a...
Neon high voltage regulator (CB8804E)
Found in a1969’s neon lamp documentation, this circuit uses a high voltage transistor. The output...