This circuit uses BCD switches to program the frequency to be divided. The circuit is from a Radio Electronics magazine from February 1989.
This 32 A circuit uses SCRs of the time. We found it in a 90s General Electric documentation. The...
This amplifier stage with 1 power transistor was found in the Radio Electronics magazine of...
This transceiver is also low power, but this time, it can generate signals in the 144 MHz band. In the...