2.90 Question

[sombra]

Does anybody knows what those 12Ax7a inside tubes do ?
I mean each one do the same thing or they do especific things ?
What they do to the sound ? :shock:
thanks

 

[whackmaster63]

Controls the Presences , works with the high end EQ

 

[sombra]

Why 3 of them ?
Why not 2 or 1 or 5 ?

 

[sombra]

What the hell in the BOOGIE BOARD nobody knows it !!!! :shock: :shock:
Should I ask in the MARSHALL BOARD ???!!!!! :evil: :evil:

 

[congalocke]

We wanna be players. Not engineers!

Peace
conga

 

[sombra]

We wanna be players. Not engineers!

Peace
conga

Hi conga

 

[ylo]

You can find a schematic at schematic heaven. I think one is a driver that includes the presence control (one side for each channel), the other two are phase inverters to drive the power tubes.