Tonepad's MXR Envelope Filter Reverse Sweep

[Slade]

Hi,

Has anyone tried this mod succesfully???
I haven't found any succesfully reports about this one.
I have built this pedal with that mod and it just does nothing, the "AW" mode does nothing.

I'm using a Toshiba TC4069UBP, a HD4069UBP (don't know the fabricant) and one Toshiba TC4066BP.

I've searched the forum and found just one post with a succesfully "report" but not more info about it.

Regards,

Fernando.-

[Mark Hammer]

It works, although I find that the starting point of the sweep is a bit off and may need adjustment.  I also find that it tends to require a stronger input signal to be audible.

[Slade]

Thanks, Mark, I'll re-check it, maybe trying different 4069s.

[bobp1339]

I have done the mod and I like it a lot.  I use humbuckers so that may also be helping... I find that if I turn the emphasis and threshold to mid point, and the attack to almost 100%, I get a nice treble un-wah sound.