The two circuits shown show how to obtain an SSB / CW control for receiving this signal top at a common receiver. The circuits were found in an old American manual from the 80's.
The coil consists of 100 turns of wire 28 in a wooden or PVC tube from 2 cm to 2.5 cm in diameter with...
This circuit is based on the Texas Instruments LMC662 and has the function of monitoring the audio...
This circuit, which uses only common transistors, was obtained from a 1988 publication, but can be...