Hot Rod Deluxe 6L6WGC too hot?

[MickeyB]

Its a 1996 with original 6L6GC's in it and I have a brand new matched pair of TAD 6L6WGC-STR short bottles that I put in and it will not bias under 95mv. The old pair bias from 35 to 80mv. Do I have to change screen resistors in order to use these? I didnt think these tubes were that different.

[Enzo]

Put the tubes in one at a time and see how one tube biases, then the other. Obviously if two tubes are to bias at 60ma, then one tube should sit at 30ma. If both tubes are just that hot, we could modify something. But if one tube is doing most of the current drawing, then you have a bad tube. You shouldn't have to change anything to use the tubes.

Also try one socket, then the other. to see if there is any difference in the amp between them. And if there is, then start looking at voltages around teh socket - particularly pins 4 and 5 - screen B+ and bias voltages.