This circuit with germanium transistors was found in a publication by Gernsback from 1960. The circuit is low power, a few tens of milliwatts.
The circuit below is a 1 mA current drain using a transconductance operational amplifier. The...
This circuit was found in a NASA documentation from the 1980s. Component values are application...
This circuit generates signals with two waveforms. The circuit is from a documentation from the...