Pre-Amp TUBE POSTIONS AND THERE FUNCTION IN SAID POSTION

BM

Hi, can anyone tell what each tube V position in the VL series controls?
I would like to know what each position is fo,r so I can upgrade and install preamp tubes in the right area
Thanks

pazman6 · Joined: 04 Mar 2007 Posts: 10 See this user's pet

I have been looking at the schematic for the VL-1002 and here is what I came up with:

From Right to left when looking in the back of the amp.

V1 Tube 1 Input Gain and Channel 1 First Stage Pre Eq Gain
V2 Tube 2 Channel 2 First Stage Pre EQ Gain 1 and Channel 1 Second Stage Post EQ
V3 Tube 3 Channel 2 Pre- Eq Stage 2 Gain 2
v4 Tube 4 2 stage Gain Pre- EQ on Channel 2
V5 Tube 5 Reverb x 2
V6 Tube 6 Effects Loop and Post-Reverb Main Out

V5 Power Board - Tube 7 This is the tube by the power tubes and looks to be some type of gain stage prior to the power tubes.

Sad thing is I am an Electrical engineer and have never dealt with circuits, so I don't really understand tubes.

Lee told me to use EH 12ax7's and also said China tubes are good. He recommended JJ Tesla El-34 for power tubes.

Later,

pazman6 http://www.myspace.com/pazman6

BM · Posted: Sat Jan 05, 2008 11:14 pm Post subject:

Awesome! Thanks Mate! my Volume 2 Marshall mod kit/DVD and the Tube Buffered FX loop/DVD as well...just watching the vid now...
Aways,
Thanks Again :-)

Lee Jackson Metaltronix Amplifiers

Pre-Amp TUBE POSTIONS AND THERE FUNCTION IN SAID POSTION