This circuit without sensors in series triggering an SCR was found in volume 5 of the 1995 Encyclopedia of Electronic Circuits. The circuit can have the number of sensors changed.
Luminus SST 20 Deep Red LED Mouser Electronics is announcing in its stock the SST-20, a 60%...
For someone who wants to take advantage of a double transformer in a good power supply, we found...
We found this simple circuit with headphones listening in Radio Electronics magazine from March...