This preamplifier circuit for turntable cartridges was found in the March 1994 issue of Electronics Now magazine. The circuit is suitable for magnetic cartridges.
This oscillator, which operates from 2 V, was found in the June 1993 issue of Radio Electronics magazine....
This circuit is intended for communications receivers. We can find it in a documentation from the...
This circuit was found in publication of the year 1958. The circuit uses one of the first...