This simple circuit for the 3 to 30 MHz range was found in the Electronics Experimenter Handbook Special Projects of 1983. The coils consist of 10 and 50 turns of 32 wire on a 1 M x ½ W resistor.
Found in American documentation, this circuit aims to produce pulses of certain durations from smaller...
This circuit limits the intensity of an audio signal from a control voltage. The circuit is from a...
This amplifier for recording heads was found in a Radio Electronics from September 1963. The...