Rebote slapback

[Lizard King]

I just completed my first project where I etched my own board.  The delay works but I'm wondering about repeats.  I can't seem to get a one or two repeats.  I can turn the pot all the way down to get zero repeats but once I crank it up just a touch I'm already getting 7 or 8 repeats.  I like slapback.  Is there a way I can modify the Rebote or did I do something wrong in my build.  Increase the 15K resistor in the repeat circuit?

Thanks.

[jasonsguild]

Have you measured the resistance on the pot to make sure it's working correctly and all the resistors in the repeat path?  If I recall correctly, having the repeat pot all the way down should yield 1 repeat, not no repeats.

[Lizard King]

Have you measured the resistance on the pot to make sure it's working correctly and all the resistors in the repeat path?  If I recall correctly, having the repeat pot all the way down should yield 1 repeat, not no repeats.

I'll do that tonight.  Thanks.

[quad]

If I recall correctly, having the repeat pot all the way down should yield 1 repeat, not no repeats.

I have just checked mine and that's exactly what it does - 1 repeat with the pot all the way down.

[midwayfair]

EDIT: misread the problem.

[deadastronaut]

If I recall correctly, having the repeat pot all the way down should yield 1 repeat, not no repeats.

I have just checked mine and that's exactly what it does - 1 repeat with the pot all the way down.

me too...

[Lizard King]

Let me modify my problem.  When I turn the repeat all the way down I get one repeat but the delay level is so low it can hardly be heard.  That's why I confused it for no repeats.  The first 1/8 turn of the repeat pot has volume so low you can't hear the delay signal.  Once you crank it a little further the volume is fine.  Unfortunately at that point the repeats are already more than I want.

[deadastronaut]

dodgy pot...have you another pot to try..?

[Lizard King]

dodgy pot...have you another pot to try..?

Nope...new pot, same problem
20k across repeat pot end lugs
Wiper to far side of 15k resistor = 15k
Don't know what other resistances to measure.
20k too low for the repeat pot???   .measured several pots in my part bin.... from 20k to 25k

[jasonsguild]

Have you double checked all the cap and resistor values around pin 15&16, and also around 13&14?  Since the single repeat is so low, I would take an audio probe and check the signal level at pins 12, 13 & 14.  If it's strong at the pins, start following the delay out path until you hopefully find the problem.

[Lizard King]

Have you double checked all the cap and resistor values around pin 15&16, and also around 13&14?  Since the single repeat is so low, I would take an audio probe and check the signal level at pins 12, 13 & 14.  If it's strong at the pins, start following the delay out path until you hopefully find the problem.

Thanks.  I'll break out the o scope tonight...