A tone control for my multifx board

[arma61]

Hi guys, almost finished my multifx board, 4 Fxs, autowha, OD250, OUSB, Minisynth, as you can see no one of them has a tone control, so surfing here and there (specially here!) I've found following
schematics http://www.diystompboxes.com/pedals/preamp.GIF, http://www.muzique.com/lab/atone.htm (just the first picture as I only have little space on my board!) , and though to combine them into a single tone control circuit. I've breadborded it and it seems not bad (tough not all the components were of the required value). So I'm wondering : did I make something wrong doing this combination (electronically speaking), is there something to improve in it , taking into account the combination and order of the FXs as shown above , where do you suggest to put it in the chain?

Any help really app.te
Armando

[arma61]

So no suggestion at all ?!?!

btw here are some pictures, it still need to be finished, and labels to be changed, it doesn't work with transparent adhesive labels!







Ciao

[tranceracer]

Usually EQs go at the end of the chain.
I was doing some research for an active EQ here are some links.  I haven't breadboarded any of these yet tho...

http://aronnelson.com/gallery/v/STMs-Circuit-Ideas/Modified_Sans_Amp_GT_2_equalizer_with_midband.png.html
http://aronnelson.com/gallery/v/STMs-Circuit-Ideas/Three_band_Eq_non_interacting_bands.png.html

http://www.montagar.com/~patj/3btone.gif
http://www.montagar.com/~patj/toneccts.gif

The passive EQ you posted looks pretty simple.  Try using the required values and go with what sounds best.

-tR

[arma61]

thank T. in the mean time I've found this http://www.beavisaudio.com/projects/bigmufftonecontrol/ (one before last one on the page, that's really interesting as I don't have to add other pcb into the box, but just wire two pots, that's really usefull. I think I can also add the buffer on a postage stamp sized perfboard and that's it.

Armando