Mark IIA Tube Layout

Pre Recto days. Boogie modified Fenders, Mark I-IV, Dual Calibers, etc

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Snottyboy
Mark II
Posts: 82
Joined: Tue Feb 06, 2007 8:24 am

Mark IIA Tube Layout

Post by Snottyboy » Tue Nov 11, 2008 8:50 am

Still getting acquainted with my IIA. Can anyone explain the tube layout of this amp (ie., what is each tube's function and location)? I've got a call into Mesa, but haven't heard back yet.

Also, my IIA has the original Mesa power tubes. Can anyone share opinions on these versus other tubes used? My main objective would be to increase clean headroom as much as possible...not so much gain as I usually play cleaner.

Thanks in advance as always.

Tim

acorkos
Mark II
Posts: 129
Joined: Wed Oct 01, 2008 3:52 pm
Location: 2 x MkIIB-4-Me

Post by acorkos » Tue Nov 11, 2008 12:03 pm

this is from the original IIB maintenance and repair manual:

Image


http://www.srl.utu.fi/~tke/MesaBoogie/

Snottyboy
Mark II
Posts: 82
Joined: Tue Feb 06, 2007 8:24 am

Post by Snottyboy » Tue Nov 11, 2008 12:16 pm

Acorkos....thank you. An absolute plethora of valuable information in the link you provided, too.

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