This sewing machine motor control was found in the December 1997 Electronics Now magazine. The half-wave circuit uses a 106-type SCR.
This circuit was found in an Electronic Design from 1964. The components are from that time and...
The bridge diodes of this circuit, found in a 1967 publication, are according to the motor...
Found in a 1970 EEE, this circuit uses general-purpose transistors of the time. Transistors support...