This small transmitter appeared in the March 1989 issue of Radio Electronics magazine. The two-transistor circuit used an electret microphone and had a range of a few dozen meters.
This circuit was obtained in an Argentine publication in 1976. It consists of a series voltage...
This circuit was found in a. transistor Manual from 1958. This is an amplifier stage with a...
This regulator circuit was found in the June 1984 issue of Radio Electronics magazine. The LM11 is a...