6505 preamp tube question

[warmachine29]

v-1 v-2 v-3 v-4 v-5 on a 6505 what tube positions will affect tone on the lead channel ?

 

[saxxamafone]

+1 I'd like to know this too

EG. What V1 does, what V2 does..

 

[Dale B]

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

The regular 5150/6505 has 6 gain stages. The first tube from the right when looking at the back of the amp is V1. V1 will have the greatest effect, as the input stage is the first half of V1.

 

[saxxamafone]

yer but is 1 tube for fx loop, 1 tube for crunch channel etc?

 

[Sixtonoize]

All of the preamp tubes (V1-V3) are shared in the 5150/6505. In the II/+, there are some tube sections that are dedicated to different channels.
V4 is the FX loop driver and V5 is the phase splitter.
All will have a different affect on the tone.

 

[Tawlks]

All of the preamp tubes (V1-V3) are shared in the 5150/6505. In the II/+, there are some tube sections that are dedicated to different channels.
V4 is the FX loop driver and V5 is the phase splitter.
All will have a different affect on the tone.

I thought the V1 was split, and the 2 and 3 were used in the lead channel and the V1 and V2 tubes in the crunch, V1 for cleans, in the 5150.

 

[Sixtonoize]

In the II/+, they are.
In the 5150/6505, they are not.

 

[JerryP]

The signal path is described below the pictures on that page. For the 5150/6505 the clean, crunch, and lead all use all of the preamp tubes all of the time.
Jerry