Well... after a good nights sleep, and pondering the fact that you guys kept harping on the fact that the Timbre pot was supposed to really give a significant difference when toyed with... I gave it a second gander this morning. Oh my! I do believe I put that 10K resistor off the wrong cap! DOAH!! NOW
it's giving me what you guys were telling
Having corrected my error, there was a significant volume boost now with the Timbre cranked, which on the downside made my MP20's sound noisy with the Sustain maxed.
I slapped myself twice... One for Jimi, and one for Lu
Seriously, I decided to audition more trannies, and I found something fairly surprising (to me anyway!). While some trannies would sweep between Q3C voltages of anywhere between 0.2v and 1.5v (Guitar plugged in, guitar vol. at max, mute strings, Balance at max, turning the Sustain pot from max. to min. Timbre doesn't matter.), I did find some others that stayed fairly steady through the sweep. Some come in at 1.3v to 1.4v, some at 1.2v to 1.3v., and others at 1.1v to 1.5v. They also seem to amplify the least amount of background noise as well, while retaining a really nice roar. I have a choice of denomination to choose from; 2SB172, 2SB176, and MP20B. The 2SB176 seem to be the most consistant, then the 172's, and the MP20's are all over the map. The 172's really shine in the Q1/Q2 spot, while the 176's seem to kick a$$ in Q3. The MP20's on the other hand seem to play best only in Q1/Q2 when using something different in Q3, or in all three slots together.
Another thing, the MP20's having their casing connected to the Base leg, are much more prone to noise pick-up. The SB's are much quieter in comparison.
All that said and done, I've decided to veer away from the MP's, in favor of the SB's. I believe I have my "Holy Trinity" in a pair of 172's in Q1/Q2, and a particularly nice 176 in the Q3 slot. My DMM is giving me gains of 95, 102, and 50. I'm getting the following voltages;
E - 1.37v
B - 1.47v
C - 4.04v
E - 1.23v
B - 1.37v
C - 4.04v
E - 0.4mv
B - 42.0mv
C - 1.47v
And I'm getting this for sound...
It's much brighter, crunchier. Much closer to the Liberal Komrade tone. Thanks for bearing with me guys. Your subtle hints definately helped out here.
One thing though, I will be going back to try the MP20's again, with the 10K resistor the wrong way, it didn't sound half bad. Maybe it just needs a different tone stack? And some decent sheilding.