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PostPosted: Fri Sep 16, 2016 8:33 am 
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Bottle Rocket

Joined: Fri Sep 16, 2016 8:13 am
Posts: 11
Hello everyone,
I've just bought a second hand Mesa/Boogie F-50. This amp is amazing but I saw one thing when I've disassembled it:

Image

It seems that the first owner cut the "tracks" (I've draw red lines to let you see the cuts) and put 2 resistors (the two in the red circle).
Can you tell me why? What happens with the 2 resistor instead of the normal track?


I've saw that inside is different from the images I see on web.. I've put a circle to the differences:

Image

Can you tell me what is the difference?

Few more questions:

1) Why the treble pot seems almost no-working in CH2? It makes Channel 2 too "trebly"
2) Is it possible to mod the FX Loop from parallel to serial?
3) Is it possible to mod the FX Loop to have 100% effect and not only 90% (I see that my volume pedal didn't cut all the sound when toe up)?
4) Is it possible to mod to have adjustable BIAS with a pot (I've 2 JJ 6L6GC now)?
5) Is it possible to mod the contour mode? Channel 1 is perfect, Channel 2 is great, Channel 2+Contour is too "midcut" for me.

Thanks all :) sorry for my bad English, I'm Italian ;)


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