Tonmeister (3 Band EQ + Boost)

[raulduke]

This is one of my own projects that I have been tinkering with for a while, and have finally finished and boxed up.

I wanted an eq to use with my Fender Champ clone head, which has a lovely tone but could do with a bit of tweaking now and then.

It provides around 12dB of boost at each freq, with the low and high stages having a shelved response, and the mid stage being a 'bell' response (with the centre freq at a devilish 666Hz )

The booster stage gives around 11dB max boost.

I'm finding it really versatile at the moment; treble boost, mid boost, mid-scooping etc, full freq boosting; it seems to be able to handle most tone sculpting requirements pretty well so far.

The majority of the circuit is adapted from a standard active 3-Band baxandall eq circuit. The eq stage is preceeded by a simple buffer, with an op-amp booster stage also incorporated after the eq.

I'm really happy with this one, and was even considering making a small batch of these to sell; but pretty much as soon as my prototype PCB's arrived the EQD Tonejob was released which looks like a very similar concept    

Anyway, enough of my ramblings, and I hope you like the pics!

[midwayfair]

Wow, that is SMALL for a 3-band EQ circuit. Great job! How's the separation between the T/M/B bands?

[GrindCustoms]

Love this alot, really the kind of circuit that i'd be into, devilish frequency are a must!

[nzCdog]

Looks great... and great layout/design.  Be a secret weapon on the pedalboard methinks

[MattOcaster]

Awesome build, clean and pro.
Had a Runoffgroove Tonemender assembled but not boxed up for ages!

[raulduke]

Cheers guys!

Yeah I'm finding it really usefull at the moment.

EQ is not the 'sexiest' of pedals but its a damn usefull tool 

[crashguitar]

Hey, sorry to revive an old thread, but I am home on break for a couple days and was digging around the forum.

Raulduk, any chance you would be willing to share schems and layouts for this eq? It sounds really interesting.

Chad

[raulduke]

Hey Chad,

Thanks for the interest.

I have ordered some PCB's for the project, which I will have for sale soon.

They are in the post so it shouldn't be long at all 'till they arrive.

Keep an eye out in the Buy/Sell/Trade area, or PM me for details.

Cheers!

Steve.

[crashguitar]

Cool. Thanks for the info. I will be watching...

Chad