The Amp Garage

I must say this is an awesome topic. I would like to someday own a lot of amps to reverse engineer them hahaah. I feel for me it's like Adult Legos, when I was a kid I loved starting to build things with Legos (choosing the right pieces in order to get to what I wanted to achieve), and the end resul...

ok, yes I understand all that, that's why I didn't say something very specific like a new resistor somewhere. There's a reason why Sebago makes an Ultra Phonix mod (I also know it's custom to the needs and wants of the customer) and there's a Vertex Ultra Phonix pedal. There must be something very g...

So basically from what I have scanned on Amp Garage, the Ultraphonix mod is a change on the Normal Channel of an AB763 in order to make it more of an overdrive channel? Leaving the vibrato channel untouched.

And then, the Power Amp section is changed to a Tweed power amp such as the 5f6a?