Author Topic: Gravity Wave (Verified)  (Read 9761 times)

plush

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Re: Gravity Wave (Verified)
« Reply #60 on: February 01, 2017, 04:51:14 AM »
But it wouldnt be difficult to just take out the rate pot of under the jack and see if the ticking goes away.

And the dust caps protect from contact, but won't do anything again lfo ticking or other interferences.

Hope you get rid of the ticking!!

Even knowing that it won't help, I took everything out. Nothing has changed.

Dust caps... I was not talking about dust caps, but about the potentiometer body. It is made of metal and acts as a shield when connected to the grounded enclosure.

I appreciate your willing to help.
Thanks.
« Last Edit: February 01, 2017, 06:14:36 AM by plush »

Boba7

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Re: Gravity Wave (Verified)
« Reply #61 on: February 01, 2017, 05:17:29 AM »
But it wouldnt be difficult to just take out the rate pot of under the jack and see if the ticking goes away.

And the dust caps protect from contact, but won't do anything again lfo ticking or other interferences.

Hope you get rid of the ticking!!

Even knowing that it won't help, I took everything out. Nothing has changed.

Dust caps... I was not talking about dust caps, but about the potentiometer body. It is made of metal and acts as a shield when connected to the grounded enclosure.


Oh yeah you're right... sorry I couldn't help much. Did you try a tl062 or tl022 instead of 072 for the lfo?

plush

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Re: Gravity Wave (Verified)
« Reply #62 on: February 01, 2017, 07:14:30 AM »

Oh yeah you're right... sorry I couldn't help much. Did you try a tl062 or tl022 instead of 072 for the lfo?

It uses LM324 for the LFO, not 072s.
I've tried 3 different 324, with no success.
« Last Edit: February 01, 2017, 07:16:22 AM by plush »

Boba7

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Re: Gravity Wave (Verified)
« Reply #63 on: February 01, 2017, 07:24:33 AM »
It uses LM324 for the LFO, not 072s.
I've tried 3 different 324, with no success.

Oups sorry again then!

lars-musik

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Re: Gravity Wave (Verified)
« Reply #64 on: February 01, 2017, 10:12:01 AM »
I should think it'd be fine as designed for bass, the signal caps are quite large already and dry signal is always mixed in.

Perhaps increase C1 to 220nF.

pin 4, negative to pin 11.

Thanks very much for your input Scruffie. I realized that there is not much bass loss to be expected from the filtering in the circuit. However, *I think* the depth pot determines the amount of dry signal mixed to the delayed one, and thus creating the chorus sound .If I dial in an especially crazy sound yet want it to be more subtle or less deep, a dry-blend feature is helpful. I finished my built and included this feature and really like the result.


Scruffie

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Re: Gravity Wave (Verified)
« Reply #65 on: February 01, 2017, 10:28:34 AM »
The depth pot is actually a wet level control, but if separate wet and dry controls work for you that's the main thing.

I just noticed something else that I think might be a tracing mistake, C19, usually a cap like that would be found between pins 1 & 2 of the LFO schmitt, not 1 & 3. It forms a low pass filter that can help with tick and smooths out the LFO.

pierre67

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Re: Gravity Wave (Verified)
« Reply #66 on: April 16, 2017, 07:53:18 AM »
I just finished mine and it sounds really cool with R9 1K, C9 3,3nF and 2,2F (MLCC) for C20...Great project !!!

bsoncini

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Re: Gravity Wave (Verified)
« Reply #67 on: May 01, 2017, 05:39:20 AM »
This thread inspired me to build one. Built on veroboard from the layout at the tagboard site.

Still haven't boxed it (missing some of the exact pot values) but sounds real good so far. No ticking even with my wires dangling all over the place.