This bank of switches can be programmed in a variety of ways for logic experiments. The circuit is from August 1986 Radio Electronics magazine.
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...