Getting infinite repeats w/ FX96?

Started by bufftonz, May 23, 2008, 05:40:32 PM

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bufftonz

I was reading the schematics of the FX96 as suggested in a previous forum, and I discovered that the lowest (min) value components I saw were rated at 16v; however the opamps and IC's didn't specify exact spec-details.  I was thinking of powering the FX96 pedal up to 12v instead of typical 9v. But if this deems still not to be such a safe marginal level of tolerance, then  perhaps I will again consider modding the circuitry (appropriately) as an alternative plan.

And with that second plan (plan B), I am seeking to achieve infinite repeats and more tonal range of the FX96 analog delay because the FX96 cannot produce long-lasting repeats, even when the Repeat knob is already maxed. I'm suspecting there is a resistor or capacitor in series, or in parallel that acts as a "Repeat-length limiter", and what could be done to allow more repeats (inifinite)?

Here below are the schematics of the FX96, and I was wondering where you may suggest me to perform such tone and repeat-related mods if the time comes that I should perform these mods:

http://www.schematicheaven.com/effects/dodfx96_echo.pdf

Look closely at the parts of the circuit designated as "Tape Quality"/Tone Control and another area designated as "Slap"/Regeneration.

I am curious as to what components may need to be modified to allow for more tonal range (Tone section) and longer/infinite repeats (Regeneration section).

Again, all suggestions and advice are greatly welcome.

Thank you.

--Chris

zombiwoof

I posted in your other thread about this pedal, I'm waiting for one to arrive, too.  I'd like to know about the 12v thing, let us know if you find anything out.  I don't know if you have the earlier one with the painted tape loop on the front or the later one, the later one supposedly has an internal adjustment for the delay time.  There's some info on Harmony Central's reviews from a couple of guys, you are supposed to be able to get more delay time by adjusting the trim pot, but at the expense of some quality of the repeats.  It looks like you want more repeats, though?  I'm not sure about that.  On the earlier "tape loop" model, you have to change a resistor inside to get longer delays, but again I suppose that doesn't help you if you want more repeats, not longer delay time.

Al