This battery charger circuit was found in the August 1970 issue of Radio Electronics magazine. The circuit uses 4 transistors. Q1 must be provided with a good heat sink.
This circuit generates sinusoidal and cosine signals of 2 kHz given basically by the values of C1...
This circuit was found in a Dutch documentation from 1970. The circuit makes use of semiconductors that...
This circuit has both frequency and duty cycle control. We found it in the October 1992 Radio...