Hopefully mylast Echoflanger post!!

[britt-stinker]

Hi

I have a Echoflanger that is TB. It suffers a big volume drop because of the TB. For some time I had a LBP after the output(in the same unit) to compensate for the volume drop. But this only let to clock noise(or background osc.), and a different tone.
Paul Nelson(aka, Hempathy) pointet out to me that I could try the timp pots inside it, but none of these did anything, but hey, I found the feedback trimpot, thanks Paul!
I've hoped that there would probably be a resistor or something inside it that could be changed to put out more volume. I've included a picture of the layout that Paul made. (I hope this is allright Paul)
If anybody have anything that could help I will be very happy!

Thanks.

[cjlectronics]

Hi,
I have an echoflanger that has a volume drop too...but I think it is inherent to the pedal.  the volume drop is not that bad IMO, but it could be for others.  Does the true bypass work in the bypass mode?  The oscillation you hear could be caused by the delay chip or even a opamp that is bad and oscillating.

My question for my echoflanger is regarding the slapback mode.  I only get a slight echo and I'm not sure this is correct.  Does yours do this?

CJ

[nelson]

After glancing at the schematic.

I dont know if this will work, it may produce distortion.

You could increase the value of the 100K resistor in the feedback loop of the first inverting amplifier of the 4558 after the input (the second one down from the input pad) Try 150K or thereabouts, increase the value till you either get unity gain or distortion.

I own a polychorus (same circuit) I run it in a true bypass loop with a mosfet boost afterwards. I true bypassed the pedal originally but decided to return it to stock. The 3PDT switch was stressing the PCB because of the placement of the footswitch hole.


The "slapback" echo is supposed to be short. There arent enough stages for the delay to be any longer. Its more of a "doubling" effect. It was called "double track" on the polychorus I assume to remove any confusion.

[britt-stinker]

Thank you! I will try this. And thanks for all your help. I sort of forgot about it until I stumbled upon it today so I thought I would try and ask.