adding belton brick to ROG Tonemender

[mollinman]

Hi all!

was just if anyone could help me figure out how to wire this up? the tonemender is built, and i just bot the brick in the mail yesterday. i've wired up a seperate board with a lm7805 to power it, i'm just not sure where i should pull signal from.

here's a link to the tonemender schem if anyone needs it. http://www.runoffgroove.com/tonemender.html

any help would be much appreciated.
Cheers,
mollinman

[samhay]

I don't think we can answer that question without a little more information - what are you aiming for?

And welcome to the forum!

[mollinman]

Thanks! Sorry for the confusion.

i'm thinking something like this?

[samhay]

OK - so you want some reverb after the tone stack.

As drawn, the reverb brick will likely load down the tone stack (input impedance is, I think, 10k) such that it doesn't play nice any more.
I would put the brick after U1b and then mix this back with the 'dry' signal with a third mixing op-amp. You can chose any of the existing BTDR designs and go from the output of their first op-amp.

As a side note, the Tone Mender is a nice circuit, but the tone stack is scaled for a tube amp, so the resistors/pots are all much larger than they need to be. If I were to go to the trouble of designing a new circuit (as you seem to be), then I would scale these down by at least 10x.

[mollinman]

Thanks so much for your reply. i'll have a look and see what i can come up with.