• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Linear Audio High-voltage Delay for Tube Amplifiers V4

Hi, Does anyone want to take on the challenge on how to hook this up in my circuit? Much thanks in advance!

“The topology is shown in figure 1. By inserting the switch in the return line to the power transformer I leave everything after the last reservoir cap unchanged. So there is no impact on the power supply quality and no messing up any carefully laid out ground circuitry. It can be used either with a bridge-type rectifier or a center-tapped secondary with a double-phase rectifier as shown.

With a Center Tap transformer, the board is connected between Gnd and Center Tap. With a full bridge rectifier, it is connected between ground and the gnd output of the diode bridge. Easy, simple, no risk.”
 

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