This circuit is from a time when this type of feature was not common in line cars. The pulse transformer has a 1: 1 turn ratio and the SCR admits equivalents.
With the used coils and the power transistor this circuit amplifies the 5 W of a 11-meter...
This circuit can be used in PLL, frequency synthesizer in FM and VHF receivers, reducing a...
This circuit is from a Popular Electronics from the 90s. The circuit has a tone frequency...