This circuit was found in documentation two years 80. Transistors can be modern equivalents. Or circuit can be modified to operate with lower voltage.
This circuit was found in the February 1980 issue of Radio Electronics magazine. The digital...
We found this circuit in a Motorola manual. The circuit has the capacitor charging at 15 to 30 V,...
This circuit has a high input impedance and low output impedance, serving as an adapter for...