This radio for the AM band has the traditional superheterodyne configuration with several transistors and integrated audio amplifier circuit. The circuit is from the 70s.
This circuit is from an 80's Radio Electronics. The circuit has several output options for 50 mA...
This proximity sensor circuit is from an 80's documentation. The used integrated circuits are...
) This circuit is from a 1967 RCA SCR manual. The circuit uses components from the era that can be...