This sewing machine motor control was found in the December 1997 Electronics Now magazine. The half-wave circuit uses a 106-type SCR.
Found in documentation from the 1980s, this circuit generates signals that can reach a few...
This is a small audio amplifier for headphones for experimental receivers. The transistor can be...
Found in a Popular Electronics from the 9s, this circuit has output for RS-232 interfaces and current...