This 80's circuit uses an audio amplifier to obtain a symmetrical source from a single source. The maximum current is on the order of 1.3 A and the input voltage must not exceed 20 V.
The oscillator shown in the figure can generate signals between approximately 3 and 15 MHz,...
This circuit uses unusual operational amplifiers, but equivalents can be tried. FETs can also be...
In the figure we have the circuit of a clamp-type microammeter described in the Radio Electronics...