This traditional dimmer configuration for incandescent lamps and heating elements was found in an RCA transistor manual. SCR can be a more modern equivalent like TIC106, depending on the power grid.
This circuit uses one of the first commercial transistors, availble in 1958, year of the...
We found this circuit in a 1997 documentation. It is possible to automatically reverse the...
The BFO or Beat Frequency Oscillator is used to receive telegraphic signals or even modulated in...