Found in the April 1978 issue of Radio Electronics magazine, this circuit is intended to be powered by a symmetrical 15 V source. The signals are low intensity.
To operate in a harmonic of the crystal frequency, tuned to a trimmer in the resonant circuit of...
This amplifier for recording heads was found in a Radio Electronics from September 1963. The...
This circuit is from the 1983 Intersil Databook. The circuit operates on 5 V power and has a...