Quote:
Originally Posted by dieseljeep
The Hoffman UHF models had 2 5U4's mounted the same way.
Also, the larger screen sets, where the B+ demands were higher.
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I know that two 5U4 tube rectifiers represent a four diode smoothing of the AC waveform. I wonder if the old sets more commonly used plain full wave, full wave bridge, or perhaps even doublers. Maybe a little of all of them. Just curious. 
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