Volume expander amplifier (T364E)

This circuit was found in the 1961 RCA tube manual. The circuit includes a power supply stage.

100 gain amplifier with LM381 (CB25272E)
We found this high gain circuit with the LM381 preamplifier in a Radio Electronics from February 1990....
Pulse Generator 2 (CB18968E)
We can produce pulses controlled through this circuit that can function as a shield if powered by a...
Ultra Miniaturized FM Transmitter (CB14873E)
If mounted with SMD components, this transmitter will be so small that it can be installed inside a...