This control for 1/15 HP motors with 5,000 rpm for 115 V power grid was suggested by a Motorola circuit manual from 1968. The SCR supports more modern equivalents.
The MC33064 can also be used on this circuit of Motorola's 1993 Linear Interface ICs. The circuit...
The circuit shown is from National Semiconductor's Linear Applications Handbook published in 1994....
This converter for the 150 MHz band was found in an American documentation. Transistors are...