This test instrument was found in the April 1991 issue of Radio Electronics magazine. The circuit has good signal strength.
This circuit was found in a NASA documentation from the 1980s. The components used are of the time...
This circuit, found in a 1994 documentation, uses 20 A 2N5448 triacs or equivalent and should be...
This circuit using a SIDAC as a relaxation oscillator was found in the ON Semiconductor manual for...