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Home › Magazines › 2007 › June › Class-A Triode Push-Pull Amplifier

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Class-A Triode Push-Pull Amplifier

Tube Sound

Published in issue 366, June 2007

Class-A Triode Push-Pull Amplifier
It is 100 years ago this year that the triode was invented by Lee de Forest.
It is remarkable that triode output stages still occupy an important place in high-end audio amplifiers. Triode amplifiers are often very expensive. The design presented here is based on a combination of optimal quality and reasonable construction cost.

Extra info, Updates

Components

In the circuit diagram (Figure 5), capacitors C6 and C7 should have a value of 47 uF, 100 V to match the parts list. C7 is shown with the wrong polarity. Two pins of V2.B are shown incorrectly: pin 8 is the cathode; pin 6 is the anode.

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Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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