Vox AC30/4 or AC34 readable schematic? to mod Vox AC15H1TV to original specs

[ulysses]

hey guys

i recently bought a Vox AC15H1TV and i am looking to mod it back to what is was supposed to be.

i am looking for a readable copy of the 'Vox' AC34 schematic- there is an unreadable copy here
http://www.blueguitar.org/new/schem/vox/ac34colr.jpg

there is a redrawn copy of the normal channel here- but i'd really like a readable copy of the original
http://www.blueguitar.org/new/schem/vox/ac34ef86.pdf

and am keen to get the EF86 channel back to original AC30/4 EF86 preamp channel specs- at the moment the EF86 channel sounds like its got a big blanket on it.. lol

i am pretty sure its because a lot of .1uf caps in the EF86 circuit should really be .01uf- not sure why vox(korg) managed to screw it up, but they did..

so if anyones got a secret web location with a readable copy of the orignal 'Vox' AC34 schem they could share I would really appreciate it

cheers, ulysses.

[Gus]

Did you try a different ef86 tube?

[ulysses]

not yet

but im pretty funny about having the components set to what they are supposed to be

was thinking about an rft ef86 to fix the noise that the amp puts out, even when no cables are plugged into it-

cheers, ulysses.

[geertjacobs]

http://www.schematicheaven.com/voxamps/ac151960.pdf

Try the AC15 schem?

I also have the http://www.thevoxac30guide.com/ with a full version.

There's also a nice downloadable EF86 component value table at http://www.18watt.com with the right values for Ac15/30.

PM me if I need to look up the values for you later.

[ulysses]

hey geertjacobs

thanks for that reply.

is there a redrawn copy of the 30/4 in there? i'd love to get my hands on it-

ive been scouring the net in the last couple of days and i have found so many different versions i don't know what to believe-

i had a look at the ef86 chart on 18watt but the tone block is missing-

cheers, ulysses.