I just noticed that the DC-10 power transformer is......

[Monsta-Tone]

The same model as the following amps:
Mark I
Mark II
Mark IIB
Mark IIC
Mark IIC+
Mark III Simul
Mark IV Simul
Dual Rectifier
Tremoverb
Heartbreaker
Nomad 100
F-100
Simul-Satellite


So......It is definitely possible to run EL-34's in this amp if the bias circuit is changed.

It also has rectifier taps which might be interesting.


I guess if you stare at the same thing long enough, you will realize that you know so little about it.

 

[kiff]

does that mean that any 4-tuber can be simul or just be made to run on el34's?

good find btw

 

[Monsta-Tone]

The Simul-Class amps have a different output transformer with separate taps for each pair of power tubes. I don't think that it is possible.


I looked at the transformer chart for Mesa.

The DC-5 also uses the same power transformer that the Nomad 55 uses, which has an EL-34 bias switch. But....The DC-5 has 6 preamp tubes and the Nomad has 5.

I will have to look at the Switching mechanisms for channel sellection and whether or not their power is derived from the filament voltage.

It is interesting though. I have 2 DC-10's. Might just have to run one of them with EL-34's.

 

[Monsta-Tone]

Not sure what you mean.

The Simul-Class Output Transformer code is: 562004

The chart I have says, Mark III, Mark IV, Simul-Satelite, 395 Power Amp, & 2-90 Simul-Class.

 

[blacklight_uk]

EL34s in my DC-5? Hmmmmm.......... :shock: