This high voltage source, found in 90’s Popular Electronics, can reach tens of thousands of volts. The Q2 transistor must have an excellent heat sink and the 9 V source is high current.
Used in audio circuits in the excitation of output stages, this circuit provides audio signals with...
This interesting configuration uses two speakers as a load to have a push-pull excitation with...
This sweep generator or current-controlled oscillator was found in Popular Electronics from...