This preamplifier circuit for turntable cartridges was found in the March 1994 issue of Electronics Now magazine. The circuit is suitable for magnetic cartridges.
The circuit shown in the figure consists of a 200mA low voltage drop (LDO) regulator using the...
This electronic “windsock” is operated by a magnetic switching system. It was found in a Radio...
In this simple receiver from a 1966 documentation, the base-emitter junction of a germanium...