Operating in class AB1, this high-fidelity amplifier was found in the 1961 RCA tube manual. The circuit has high input impedance and good gain.
This circuit uses two sensors that are placed at the intersection of a miniature railway, causing...
This good quality audio amplifier with an output of about 10 W with the original transistor was...
This circuit for the automatic activation of a small lamp (or high brightness LED) was found in...