This circuit is from the 1990 Motorola Linear Databook, which can be developed with more modern equivalent operating systems. The 1 uF capacitor should be of good quality polyester with small leaks
This different power control circuit with SCR was obtained from a 1967 magazine. The SCR can be...
The L coil of this receiver determines the received waveband. The circuit is from a 1963...
This circuit is part of an article published in the March 1990 issue of Radio Electronics...