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, found in a Popular Electronics from 1992, is based on an oscillator and a crystal...
This simple electronic organ with a tremolo effect was found in a 1981 publication, but it can be...
This 1969 circuit generates a high voltage that reaches 100 V from 16 V. The power is of the order...