This low-power circuit was found in the March 1990 issue of Radio Electronics magazine. It consists of a tone control solution for portable turntables.
In this circuit, the current capacity doubles, but is still of the order of microamps. The...
This circuit, which generates a linear sawtooth signal, can be used in a frequency-band...
This circuit was obtained from a 1980's QST magazine. The circuit can generate 1 to 15 MHz signals...