Using a sensor from the time, this circuit was found in the 1992 Radio Electronics Handbook magazine. The circuit uses a pair of integrated two-digit A/D converters.
The transistors of this circuit found in a 1992 Electronics Handbook can be the BC558 and the 6 V...
This 600-ohm output impedance circuit was found in a Radio Electronics from October 1963. The...
Used in radio reception, this circuit was found in the February 1983 Radio Electronics magazine. The...