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Hello

Both normal and TMB channels on my TMB build have close to 0 overdrive saturation, even with preamp volume maxed out.
The clean sound is really good, I admit, but I cannot get any overdrive. The only overdrive appears with high output humbuckers and master volume at noon or more - then some signs of (slight) crunch appear.
I assume this is a preamp issue. Power amp to me works as it should.
I tried to trace the board for errors, I did not find anything apparent.
The amp is loud and clear, no buzz, noise etc - all seems OK except the lack of darn distortion.
Can you tell, from your experience, the possible culprits/typical causes of such behavior?

I will check again the components values, connections etc but any suggestions are welcome.

Thanks

Gitarzysta

Can you tell me what the voltages one the 12AX7s are, and if the bypass capacitors are in place as peer layout? Actually, allthe voltages would be good to know.

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Stephen
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