This circuit for incandescent lamps was found in a 70s documentation. The circuit uses an SCR according to the power of the controlled lamps. The delay is a few seconds, given by capacitor C1.
This single-cell Li-Ion battery charger was found in a 2005 Linear Technology manual. The circuit...
This circuit is from old documentation and can be assembled with 2N2646 for the unijunction and...
A safe way to obtain a sinusoidal signal of excellent quality and low frequency without the need...