Does 12volts fed tubes glow!?

[Kaiowas]

As short as that...

Does 12volts fed tubes glow!? Do they show that beatiful "orange-glow"?

ah!...How do i tweak the sound (tone) of the Ruby Boost? Wich caps or resistence do i have to play with?

Thanks

[jimmy]

its the heaters that glow, unless youve done something wrong... so i spose yes they will.

are we talking about the sopht amp site ruby or the ROG ruby?

cheers
Jim

[aron]

Yes, if you are wiring them to use 12V, yes, the heaters will glow.

[petemoore]

I used a 9v 800ma WW power supply and connected that to the heater lugs [4&5] of a 12AX7, and under the load the circuit measures 11.2v...close enough I think, you want the measured voltage of the circuit to be close to the tube rating for optimal performance and longest heater life....sezz the RCA Tube Manual.