• 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.

EL34-pushpull-cascode input

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Friends who are interested in making a high-quality Posh Pul to listen to music, you can make this amplifier and enjoy its sound. This is a serious task in competition with expensive brands. As long as you respect the quality of the parts, the result will surprise you. PCB assembly is not used.
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Joined 2004
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I agree with @rayma. In your schematic the UF4007s do the rectification. The current is then guided through the damper diodes to provide “slow start” as well as whatever “signature” and filtering of spikes the damper diodes imparts to the rectified current. Capacitors follow the damper diodes.

Please rotate the picture of the schematic for easier viewing.