Whisker Biscuit motorboating ?? PLZ HELP

[solarplexus]

Is it even possible ??  Cause mine sounds like it is!! 

When I plug the effect (with a battery) I get no sounds from the guitar, just this weird motor sound when I turn the knobs...

Now...

I have used two 2N5089 instead of the 2n5088 and I used two 2n5088 to make that MPSA13 ... .

The rest... I used all the exact values with metal film caps.

Do you have ANY idea if this may cause the motorboating ??


PLZ HELP!

Thanks,

Matt

[$uperpuma]

I know that inadequate grounding can cause this in 12vDC Car Audio situations, so thats the first place I'd check. Make sure that the solder joints are good joints, no cold joints, etc..

[solarplexus]

Thanks I'll try that and get back to you...

[solarplexus]

FIXED and working...

I swapped the two 2n5088 for just one 2n5089 as I found the decay is better, lasts longer and still has lots and lots of fuzz...


Thanks ROG  for another great circuit!


And thanks  $uperpuma for your tip!

Matt