Dan, Just a question . Did you install the zener diodes in the biasing network . If so you need to snip them out or snip one end and see if they are shorted as this could be the cause of the tube going cherry red.
"Carver Audio, why settle for less, just ask my neighbors"
C1,C2,CT3,CT6,CT7/3,CT23,CT26,C4000,The Receiver,M500,M500T/6,M1.5T,TFM24/2,TFM/25/2,TFM35,TFM35X,TFM/42,DTL200,TDR1700,DPL20,TX11,5.2Center,5.1Sub/3,Original Amazings,Platinum Amazings/2,AL3'S,Polk SDA SRS, Polk SDA 1C's, Polk RTA11's, Polk Monitor 10's,Monitor 7's, Sunfire 300x2 /5, Sunfire pre, Sunfire MK2 Sub, 4 Carverfest monoblocks, Mapletree Audio Designs Tube Preamp,Phase Linear Andromeda III speakers, Phase Linear 4000 Preamp, Dahlquist DQ-10's
Some of the best fuckings we get during our lifetime will come from a relative!
I don't kiss ass and I dont take peoples shit, so dont expect it from me!