This circuit supplies a load at SO1 when the load at SO2 is powered. The circuit is from a Popular Electronics from the 90s. Diodes and triacs must match the loads.
In the figure we show a trigger circuit for triacs with a unijunction transistor. The circuit is...
The oscillator in the figure has its frequency determined by the crystal. The indicated value is...
This circuit was found in the November 1959 Radio Electronics magazine; The circuit generates a...