This circuit was found in the September 1993 Electronics Now magazine. It is based on the 555 and powers an audible indicator.
The oscillator illustrated in the figure can be used to generate signals ranging from 100 kHz to a...
This circuit is from General Electric from the 80s, using a relay with high current contacts (20...
September 2017 - IXYS Class X2 to 700 MOSFETs can now be purchased from Mouser Electronics....