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Did you ever solve this problem, or get a reply from Mesa? My Formula has a similar problem, when the original footswitch is plugged in. Without the footswitch (using the front panel buttons) there is no problem. regards Svein

Thank you, so the Triaxis has a Torodial, then I guess it's likely that the other one is an European version for the TA. I was hoping it was an European for the Formula pre.....anyone looking for a Triaxis transformer then? :)

Hi, I've got a couple of Mesa transformers available to me, I was wondering if anyone could help me figure out witch Mesa's it belongs to? Transformer nr.1: Looks new/unused and has the inscription: Transformer # 5038-b Made For Mesa/Boogie P/N 561011 (seems to be made by a company called...

I've done some mod's to my own Formula. Not the actual Andrew mod though. The clean on the Formula is great, but the distortion channels tend to sound both muffled and muddy. 1.I believe the muddyness/spongyness of the lead channels is from having too much bass in the pre-drive circuitry. My...

Hi, do you know what the voltages out of this transformer is? I'm checking weather it would fit my Formula preamp. I know that the transformer has the 15volt taps my Formula need, but I do not know if the tube/hugh voltage taps is correct. My Formula needs +/- 190volts (from the transformer)...

Hi, this mod increases gain as I've understood. It also increases brightness? Is this by modifying pre-gain voicing? Is there a way to open up the lead-1 channel without affecting lead-2? (or vica versa) best regards Svein