This simple receiver of two transistors for the 80-meter range was found in an American documentation from the 1980s. The transistors admit equivalents and the antenna must be long.
This is the decoder circuit for the previous encoder (CB17011E) using integrated circuit MC14028. This...
This simple voltage regulator or stabilizer uses only two component and can source up to 100 mA to a...
We found this preamplifier for the 10 and 11-meter range in an old documentation for radio...