This pocket-sized VHF receiver was found in Radio Electronics magazine from January 1961. It uses a transistor and tunes to the 11-meter band, considered VHF at the time.
The L1 coil consists of 20 to 100 turns of fine wire in a cardboard box where plant specimens are...
This circuit was found in a 1980s documentation from the manufacturer of the integrated. The...
The circuit also works as a synchronized rectifier and balanced modulator. We found it in the...