Vox AC30C2

[pnut5150]

Can't figure out how to upload just preamp section if file

[g1]

When replying, click "go advanced", then look for "manage attachments". Upload the whole schematic if you can.

[pnut5150]

I got to there, it's a pretty big file I don't think I can attach while file. Pm me your email address?

[pnut5150]

voxac30c2preamp.pdf

[g1]

Good! That says sheet 1 of 3. However you did that, can you do the same for the other 2 pages?

[pnut5150]

Yep, be right back in a couple mins

[pnut5150]

voxac30c2revfx.pdf voxac30c2pwramp.pdf

[pnut5150]

There ya go, sorry it took me so long. Had to go the long way around to get them here!!

[g1]

What is the DC voltage at each end of R55?

[pnut5150]

9.34v on end facing tubes
9.20v on end toward control panel
Both sides are fluxuating

[pnut5150]

Resistor reads 1.198k ohms in circuit. It is listed as 1.2k ohms

[g1]

Check resistance from each end to ground (power off).

[pnut5150]

48.1k end toward tubes
46.9k toward controls

[g1]

Resistance check from actual socket pins (tube removed) pin 3 to ground, pin 8 to ground.

[pnut5150]

R60 has -3.1mv with power on one end
17.00v on other...seem right? And I have neg voltage on both sides of d12..couple pieces that had me confused