S shortyK Active member Joined Oct 11, 2005 Messages 28 Reaction score 0 Oct 19, 2005 #1 What is the tube layout for the Mark I? I have three 12ax7 along the front and one 12ax7 next to the Power tubes. No reverb, no EQ, does have an effects loop. Thx sK
What is the tube layout for the Mark I? I have three 12ax7 along the front and one 12ax7 next to the Power tubes. No reverb, no EQ, does have an effects loop. Thx sK
B Boogiebabies Well-known member Joined Jan 30, 2005 Messages 4,578 Reaction score 22 Location Korn's Bakery Brooklyn NY Oct 19, 2005 #2 Main input stage V1A, Output V2A, Gain Stage V2A, Output V2B -more gain as well, V3 A loop send in, V3B loop return out, V4 A&B Phase inverter. Just my guess on a typical boogie preamp layout with a loop.
Main input stage V1A, Output V2A, Gain Stage V2A, Output V2B -more gain as well, V3 A loop send in, V3B loop return out, V4 A&B Phase inverter. Just my guess on a typical boogie preamp layout with a loop.
T timv Well-known member Joined Jul 22, 2005 Messages 110 Reaction score 0 Location Chandler , az Oct 19, 2005 #3 Is this the reissue? If so, this might be the schematic. http://www.tubefreak.com/mkirga_1.jpg
S shortyK Active member Joined Oct 11, 2005 Messages 28 Reaction score 0 Oct 19, 2005 #4 Understood. Which one is the V1 when looking at the amp from the back? sK
T timv Well-known member Joined Jul 22, 2005 Messages 110 Reaction score 0 Location Chandler , az Oct 19, 2005 #5 V1 is usually the one closest to the input jack.
S shortyK Active member Joined Oct 11, 2005 Messages 28 Reaction score 0 Oct 19, 2005 #6 Thanks, what I was also assuming. Oh, it is an Original Super Sixty, 1976 sK