Described in the December 1969 Radio Electronics magazine, this circuit is intended to supply the previous circuit. The circuit is not isolated from the power grid.
This circuit can handle 25 A unde a 32 V voltage using a hight power old transistor. This...
We found this circuit in a 1980s publication on telephony. The circuit uses an integrated...
The frequency of the square signal produced by this circuit depends on the light falling onto the...