Using a DAC038 IC this circuit is from Radio Electronics from May 1983. The circuit must be powered with a 5 V source and uses common operating outputs.
Found in old English documentation this circuit can be made with a BF245 or equivalent. Coils are...
This circuit is indicated for the generation of signals in the 40 meters range. The circuit was...
Carbon microphones are no longer used in most projects. However, finding one in the scrap metal, it...