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IIRC my 4 knober uses the all glass CRT AND has the 5U4-5Y3 dual rectifier set up....
So does mine! To me (having both at one time and running out of room), it was a pretty easy decision to keep the older 4 knob version and turn loose of the later version (pencil box) that had a weak (going gassy) metal CRT.
10-06-2015, 11:13 PM
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