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Magnavox tube amp convertion to harp/guitar amp

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  • #16
    Originally posted by nashvillebill View Post
    Very clever, Bruce!

    My Magie 175 s probably similar and it has 355 V on the B+, so going to SS rectification likely wouldn't get the B+ up too terribly high for those old 6V6's.
    With a center tapped high voltage secondary and a full wave rectifier... (solid or hollow state)... you can use one or a couple 5 watt zener diodes in the center tap of the winding to lower the B+ voltage a bit.
    Just remember to point the cathode band(s) of the zener diodes to chassis ground....
    Bruce

    Mission Amps
    Denver, CO. 80022
    www.missionamps.com
    303-955-2412

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