[NJARC] Six volt vs five volt rectifiers

[w2wiq1 at juno.com]

WHEN YOU HAVE A HK SHORT YOU USUALLY ONLY LOSE THE RECTIFIER TUBE.
84 TUBES ARE HARD TO COME BY BUT YOU CAN USE A 6Z4.

WALTER-W2WIQ

-- NICHOLAS                  SENKER <ns539 at embarqmail.com> wrote:
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I am working on a 1940 Philco radio which uses a six volt rectifier (type 84).  This is neat because it simplifies the circuit and eliminates a winding on the transformer.  My question is why isn't this used more?  It seems that any heavy duty circuit such as a power amp or television uses a 5 volt rectifier, eg 5U4.  Is it because of the possibility of a cathode to heater short?  I imagine this would be disasterous for a six volt rectifier on the rest of the filament string.  Comments?
Nick Senker
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