AC15 channel output difference

[plookit]

Hello,

I made an AC15 chassis up about 10 years ago and never got around to completing it due to being overwhelmed with my teaching job, which I just retired from. I have dug out the AC15 and fired it up. It sounds great and need to get it in a cabinet.

One thing that concerns me though is the output difference between channel 1 (vibrato channel) and channel 2. Channel 1 is quite a bit lower volume than channel 2. Is this normal on an AC15?

Thanks

Tom

[sluckey]

That's normal.

[plookit]

That's normal.

That's good to know. Thank you.

[sluckey]

You can make it much better by swapping positions with R10 and R35. Even better if you replace R35 with a jumper wire and change R10 to 62K. Refer to linked schematic. Easier to see what's going on if you look at page 3.

http://sluckeyamps.com/VAC15/Vox_AC15.pdf

[plookit]

You can make it much better by swapping positions with R10 and R35. Even better if you replace R35 with a jumper wire and change R10 to 62K. Refer to linked schematic. Easier to see what's going on if you look at page 3.

http://sluckeyamps.com/VAC15/Vox_AC15.pdf

That is brilliant, thanks so much. I'll let you know how I get on. What a superb set of documents.

[plookit]

I made those mods on R35 (jumper) and R10 (66 because not got 62) and channel 1 seems even quieter. Will reverse it and compare

[sluckey]

I did not expect that.

And I should add... Looks good on paper but I have not done this to verify.