Dusty Chalk Posted August 3, 2008 Report Share Posted August 3, 2008 I'm finally going to break down and start doing my own soldering, and thought that maybe I'd make some adapters so that I can use other sorts of tubes in my Singlepower (tube complement == 3 x 6sn7's). 7n7's should be easy --they're just a rewire. It was suggested that I try 5687's. Based on this: the 5687 adapters have a network to keep them from oscillating, it's not just a straight pin to pin job.and other posts (mostly from Jacob), it seems that it's not a straight rewire. Anyone have any idea what the "schematic" would be? Any others that are straight rewires that I should also try? Thanks for any info. Quote Link to comment Share on other sites More sharing options...
aerius Posted August 3, 2008 Report Share Posted August 3, 2008 If it's oscillation then my guess is resistors on the grid pins. For the 5687 this would mean resistors from a few hundred to maybe a few thousand ohms on pins 2 & 7. Quote Link to comment Share on other sites More sharing options...
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