This stereo meter-indicator was found in the August 1971 issue of Radio Electronics magazine. The transistors are known types and BC548 equivalents can be used.
In the figure we have the way to adjust the output null of an operational. The configuration...
The purpose of this circuit is to connect an appliance (fan, lamp, motor, soldering iron, etc.) or an...
This blocking oscillator circuit was found in a book by Rufus Turner from 1954. The circuit uses...