We found this sensitive high input impedance voltage amplifier in the November 1970 Radio Electronics magazine. The circuit is powered by 18 V power source.
The circuit shown is a white noise generator using a zener diode as a source of noise. The...
With this 1-transistor circuit we have a high input impedance and good gain. The circuit is from a...
This circuit generates 500 Hz rectangular signals. The circuit is from old American documentation. Neon...