Tube Positions for a 5150

[krimson]

I was looking at replacing the preamp tubes in my 5150. I checked Eurotubes and they mention using a balanced 12AX7 for the V5 position. It outlined what each of the preamp tubes do but what I want to know is if I am looking at the tube preamp section which tube is V1, V2, and so on.

[krimson]

Anybody?

[Dreamland_Rebel]

usually v1 is closest to the input jack... usually.

[jcs21]

From Jerry's site-

http://www.fjamods.com/5150Models.html

[Cygnus X1]

V5 should be closest to the power tubes, it is the phase inverter (pi).

A "balanced" tube will theoretically put equal signal to both halves of the power stage, as well as equal load from the preamp stages. It's all a matter of taste. Try a few different ones and see if it makes a difference. Most quality 12AX's will do alright.
The perfect balance is snake oil, in my opinion.

[krimson]

Exactly what I was looking for. Thank you.