Using a period sensor, this circuit was found in the February 1986 issue of Radio Electronics magazine. The sensor is a Philips of the period.
This preamplifier for magnetic cartridges was found in the February 1990 issue of Radio...
This oscillator for receiving SSB signals is intended for receivers with IF of 455 kHz. The...
This simple transmitter for the citizen range was obtained in a 1983 publication and has only one...