Son of A Boogie tube layout

[Mike77]

Anybody know the preamp tube layout for a SOB? I need to know which 12ax7 does what. Anyone have the info on these?

 

[zodiac272]

Hey,

Is the son of boogie the first Mark I reissue? it's probably like this: page 8 in the manual

http://mesaboogie.com/manuals/Mark1%20Reissue.pdf


if no reverb, then the 4th tube is the phase splitter. the first tube (V1) is always closest to the input jack


scott

 

[Supersonico]

Here is schematic that shows the layout of my '83 S.O.B.
http://www.freeinfosociety.com/electronics/schemview.php?id=291

Hope it helps,

Juan