Chance terrill
New member
Does any one know if I can put kt66s in my 40watt dirty shirley..... Maybe some gold Lion kt66s? Would I just have to bias it? And would it sound good? What differences sonically
Chance terrill":14k4502o said:I had heard they are more midrangey like an el34.....
Chance terrill":35ejjkht said:Based off what you're telling me I'm pretty sure the one ohm resistor is on pin 8 and 1 because that resistor is right by the notch in the center of the tube and I've been reading that that notches how do you tell where pin 1 and 8 is or are rather so that being the case when I go to measure my biased set it at 40 milliamps and take measurement with one probe going to ground and the other probe going to pin 8 on the resistor?
Chance terrill":3gqrzqrh said:Then if I want to put a different type of 6l6gc in it and measure the plate voltage I would just measure pin 3 and ground to establish plate voltage then go to the Chart you sent me look at 6l6 tubes and go for a 60% bias?
Chance terrill":3oup75n2 said:What do you mean if they bias up? How do you know if they do or not?
Chance terrill":11u746y9 said:So make sure I have a spoon in one hand touching the filter cap and then probe around the power transformer a whole bunch?....... Lol just kidding, thanks for all your help, I don't know that I want to swap out the 5881s because I love my amp through and through as is.... I just want to know how to do stuff myself, also if I was gonna put big money into really good tubes.... What tubes would have the biggest impact.... Power vs pre. And if preamp then I'm assuming v1 would have the biggest impact.... For example if I was gonna buy some gold Lion prep tubes, would they enhance my tone? And should I replace all 3 or just v1 and v2 or just v1 etc........ Thanks again btw