TriAxis Schematic for primary power transformer

Triaxis, Quad Preamp, Stereo Power series, Recto Preamp

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bettsaj
Bottle Rocket
Posts: 8
Joined: Mon Feb 06, 2017 11:44 am

TriAxis Schematic for primary power transformer

Post by bettsaj » Thu May 18, 2017 7:59 am

Simple question.... Does anyone have the power stage schematic for the Triaxis, and also hopefully an export power stage schematic?

The schematic that is freely available on the interweb doesn't have the power stage, just the audio, midi etc.

I want to change the toroidal transformer from 120AC US to a 240AC transformer for the UK.

MesaMad1378
Mark II
Posts: 56
Joined: Tue Sep 15, 2015 4:49 pm
Location: Gold Coast, Australia

Re: TriAxis Schematic for primary power transformer

Post by MesaMad1378 » Sun May 21, 2017 4:20 pm

Hey man,
Haven't been able to find schematic but this could help you!!!

http://www.tubeampdoctor.com/en/shop_Ma ... ersion_868

Mains transf. for Mesa Boogie Triaxis 230V version
Exportversion, replaces the 120V domestic version (561011)
Primary
230V BROWN
0V BLACK

Secondary
HV RED
HV RED

9V YELLOW
0V YELLOW

6,3V GREEN
0V GREEN

15V VIOL.
0V WHITE
15V VIOL

For conversion of a 120V unit You must change MOV and both blue primary capacitors (47nF)
Mesa Dual Rectifier, TriAxis, Recto Recording,
2:90, 2:100, SUS-4 16ru Case,
Flux Five, Throttle Box EQ, 5 Band EQ,
Straight Traditional 4x12 Cabs.
And other stuff!!

bettsaj
Bottle Rocket
Posts: 8
Joined: Mon Feb 06, 2017 11:44 am

Re: TriAxis Schematic for primary power transformer

Post by bettsaj » Mon May 22, 2017 3:19 am

Yeah, I've seen that. Which is the wiring on the export transformer....... But I need to know what wires are what on the currently installed transformer, as they likely use a different colour coding system than the export. Basically I need to know where the wires on the new export transformer go.

MesaMad1378
Mark II
Posts: 56
Joined: Tue Sep 15, 2015 4:49 pm
Location: Gold Coast, Australia

Re: TriAxis Schematic for primary power transformer

Post by MesaMad1378 » Mon May 22, 2017 3:36 am

Have you pulled the top off and had a look, every Mesa amp etc that I've converted or worked on has what they are on the board. The 2:90 and the HGAS that I converted were simple as. Mine is already a 240v model so I aren't much help there.
Mesa Dual Rectifier, TriAxis, Recto Recording,
2:90, 2:100, SUS-4 16ru Case,
Flux Five, Throttle Box EQ, 5 Band EQ,
Straight Traditional 4x12 Cabs.
And other stuff!!

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