I'm thinking of changing my circuit board from a 59' layout to 2203 layout. I want try 6550 tubes in this layout. What value resistor should I use for the bias circuit? I also have the dual tap transformer in my amp. Does PT have to be changed? I guess that this will not be an issue if I just use the single tap. Has anyone run into any problems I should look out for? It looks like it's only a few changes to the board for this mod. Any help is appreciated!!
Thanks
Keith
Changing board to 2203 Layout
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