Neither AM or Keeley have that function. The Keeley AD-9 has a foot switch to operate oscillation/feedback NOT modulation.
Keeley actually has a mod to control delay time with an expression pedal. Since changing the delay time while the delay is in use is what creates the modulation, you can definitely get modulation out of it. I know because I used to own one.
...can't... hold... it... in!
I'm working on one. give me a couple months.
Foot-switchable modulation, foot-switchable tremolo that effects either the delayed signal or the dry signal, FX loop- also switchable from dry to wet, oscillation foot-switch, dry output for stereo, short/long delay times up to 1 second, tone control for the repeats.
yeah it's oscillation and feedback... sounds great but not modulation. Check out the Diamond Memory Lane.
If tap tempo isnt necessary....check out the EcholutionCan you please expand on this? What would the difference be between oscillation/feedback and mod?
I'm thinking modulation is sort of a chorus-type-like with the Skreddy echo. IN a sense, that would be what I'm after, but with a footswitch to engage the chorus-stuff. Tap tempo would be cool, but not all that necessary.
Thanks for the posts, guys!