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.
This “test your nerves” game was found in old documentation. The SCR can be of any sensitive type,...
The power supply for this circuit must be symmetrical at 15 + 15 V and the load at 4 or 8 ohms. The...
The LM109, which is not common today, was manufactured by many semiconductor companies. This...