This circuit generates a linear sawtooth signal. The circuit was found in the December 1992 issue of Radio Electronics magazine. The maximum frequency is around 200 kHz
This silencer or squelch preamp circuit was found in a documentation for radio amateurs. It...
This circuit was found in a 1994 publication. It draws 1 of 41 LEDs when we press and then release...
This circuit makes use of a diac to stop the activation of a sensitive reed relay 1 mA. The trip...