I need Triple Rectifier 2 channels schematic HELP

[Triplerec]

Hi.

I have serius problem to repair this amp
I need Triple Rectifier 2 channels schematic, anybody knows how can I get that schematic for sale, I know that to get it for free is practically impossible.

Please help me on this one
Thanks

 

[mikey383]

This is for a Dual, not a Triple, but the preamps are the same, and the power section is basically the same. I'm not sure what revision the preamp schematics are for though.

http://www.freeinfosociety.com/electronics/schemview.php?id=507

 

[Triplerec]

Are you sure it is the same schematic ? if it's so thaks for you help.

this is my triple rec 2 channels

 

[mikey383]

That's a nice looking head. I'm guessing it has to be between a '97 and a '99 by the knurled/dot knobs.

The only differences between a Dual and a Triple is the addition of two power tubes, one rectifier tube, and beefier transformers. There may be two more diodes in the diode rectification also, but I'm not sure of that. The preamp circuit is the same, and the power amp schematics could be adapted for the additional tubes once you tear into it and see how it's wired.

What exactly is wrong with your amp?

 

[Triplerec]

The Problem is this

The head lost power and the characteristic low end from Mesa Boogie sound

Using the head with the EQ and presence on flat position ( 12 o'clock ) + gain at ( 3 o'clock )..... The power come near 50% less than usual and the sound with a lot of mid and hi frecuencies

I've changed the volumens POT

The schematic would be great help

Thank for you time

 

[mikey383]

Have you checked the tubes? That would be the first place to start. Try swapping out the preamp tubes with a new one - one at a time. Then try a new set of power tubes.

Sounds to me like you have a bad tube somewhere.

 

[Triplerec]

It has all new power and pre-amps tubes

 

[mikey383]

Did you change them out before it started doing this, or after?

If you changed them out before, try the old ones like stated earlier. New tubes can still go bad quickly.

If you changed them out after and it's still doing the same thing, then yeah, there's something wrong.

 

[Triplerec]

I changed them out after and the problem still doing the same

I did some measurements but I'm not sure what is the exactly voltage with out the schematic.