This circuit is powered by a voltage of 4.5 V, being common in radios of the 60's. The circuit is from Mullard's transistors reference manual.
This circuit sends its signals to short wave receivers and even FM outside stations placed nearby. As...
This circuit for tuning FM receivers was found in the November 1960 Radio Electronics magazine. The...
This circuit shows how to use a PNP transistor to drive a load from 500 mA to 1 A, depending on...