This high current switching stage was found in a 1967 EEE. The power transistor is from that time. The peak current can reach 30 A.
This circuit has both frequency and duty cycle control. We found it in the October 1992 Radio...
This power supply is indicated for the supply of not very powerful car radios of the AM and FM...
In the absence of a modulation signal, the carrier of this simple short-range transmitter is cut...