In a September 1992 Radio Electronics article, we found this basic 555 circuit used to generate fixed times. Capacitor C1 and resistor R1 determine the time. The circuit drives an LED.
This high-gain digital amplifier uses general-purpose transistors. The supply voltage is logic...
Obtained from a 1969 neon lamp documentation, this circuit shows how to assemble an indicated...
This 2-quadrant modulator circuit was found in the May 1988 issue of Radio Electronics magazine. The...