Mesa Boogie Mark III wattage question

[anomaly]

Just taking an educated guess, Simulclass mark III (any revision other than green) should be 75W and the half power likely takes out the class A pair and keeps the AB pair making it 30W in half power mode.

Less than that, 15 watts in class A (half power) or 25 for a green stripe which is wired pentode in the outer pair.

 

[Chase42147]

Yes, mine is always on, auto is used when you want the eq on the lead channel only.

Ohh got it, that makes sense

 

[Neptical]

FWIW Class A (15w) on my Simuclass IIIs was used A LOT for shows. Still LOUD but.. man, what a fantastic crunchy tone.

 

[Chase42147]

FWIW Class A (15w) on my Simuclass IIIs was used A LOT for shows. Still LOUD but.. man, what a fantastic crunchy tone.

I've noticed that Boogies seem way louder than they're rated it, it's pretty sweet

 

[PurityS.L.G]

I think they didn't have faceplates for Simulclass longheads. Check the output transformer. 562100 is 100W class A/B, and 562003 is 75W Simulclass.

The switch on Simulclass amps is actually full power or Class A (just outer tubes running at 15W).

I'm still confused. My OT is 561100 and PT is 550381.

I'm also reading the long head III's are mislabled and also that the simul-class switch is actually the full/half power switch on the front. Who knows

 

[Snave]

I'm still confused. My OT is 561100 and PT is 550381.

I'm also reading the long head III's are mislabled and also that the simul-class switch is actually the full/half power switch on the front. Who knows

561100 is a PT and 550381 is a choke.

 

[SpiderWars]

There is a page for Mesa User Manuals and I’m pretty sure I read it when I bought my Mk III Simul in the 90s. The page is still there but I can’t get it to work on my phone.

 

[PurityS.L.G]

561100 is a PT and 550381 is a choke.

I stopped being a lazy ass and pulled chassis out for better access ? it’s indeed simul class ??