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 LM109 integrated circuit has been manufactured by many semiconductor industries. The circuit...
We found this circuit in the October 1978 issue of Radio Electronics magazine. The magazine...
The simple speed control for DC motors shown in the figure can control loads up to 2 amps. The...