07-09-2018, 06:22 PM
(07-09-2018, 06:19 PM)mikethedruid Wrote: Actually, there were different models of the 37-630...
Right. The 37-630T chassis has the rectifier next to the audio output tube, on the chassis. The 37-630 console chassis has the rectifier tube on top of the power transformer.
I made an assumption that the OP had a 37-630 console chassis in which case my advice is correct regarding use of a 5Y4GA tube. If the OP has a chassis from a 37-630T, he's good to go as far as fit inside a 37-610T cabinet.
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Ron Ramirez
Ferdinand IN