• 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.

Gargantuan Linestage Output Capacitors

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Tweeker

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Joined 2004
Yes, the 7835 datasheet states that it can only manage a peak plate current of 325 amps. For this and other reasons an upgrade a Thales TH628 Diacrode in a new PA is planned. This is a four element doubleended tube that uses pyrolytic graphite grids, a thoriated tungsten mesh cathode, and a multiphase-cooled anode rated to dissipate 800 kW. The PA will operate as a class AB2 linear amplifier, eliminating the need for the anode voltage modulator.
 
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