Found in a 1965 Electronic Design, this circuit can be made with modern equivalent transistors. The capacitor basically determines time.
This first-order high pass filter is applicable to any operation requiring a dual power source. It was...
This modulated circuit was found in the November 1997 Electronics Now magazine. The power...
This stabilized source can supply currents up to 700 mA and the output voltage is close to 15 V. a...