Found in American documentation from the 90s, this circuit can be applied to other operational ones. We found it in an EDN of the time. Next to the diagram is the response curve.
The transistor on this mixer can be any general-purpose transistor. The number of entries can be...
Currents of a few tens of milliamps can be obtained with this simple source that makes use of an...
This power supply protection circuit was found in the December 1978 Radio Electronics magazine. The SCR...