This circuit with germanium transistors was found in a publication by Gernsback from 1960. The circuit is low power, a few tens of milliwatts.
This circuit we have a practical idea to improve the performance of voltage regulators. The idea...
The BFO or Beat Frequency Oscillator is used to receive telegraphic signals or even modulated in...
Found in a1968’s Burr Brown documentation, this shield uses an integrated circuit from that time,...