Heater Supply Circuits-AC and DC

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CJ

Well-known member
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Joined
Jun 3, 2004
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thought we could throw down some vac tube heater circuits all in one place,

there are a ton of them out there, AC and DC,

never had much luck with regulators, they do not like the start up currents,

and sometimes the high voltage plate supply finds it's way to the regulator,

here is a DC supply to get things rolling,
 

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DC supply with single diode,

memory capacitors?  ???  maybe scrounged out of disposable cameras?  :eek:

 

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infamous Marantz 10B tuner, has regular AC, elevated AC,

a and minus biased AC for the mini CRT which was used for tuning stations,
 

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infamous Fisher 500C has some weirdness (translate-do not understand)  :D

has a -22 V-dc series string on a few 12AX7's,

and some funny caps on the upper string>
 

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