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DIYstompboxes.com  |  DIY Stompboxes  |  Building your own stompbox  |  New Effect: Payback 0 Members and 1 Guest are viewing this topic. « previous next »
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Author Topic: New Effect: Payback  (Read 56830 times)
Auke Haarsma
Posts: 1057

TooMuchGear?


Re: New Effect: Payback
« Reply #180 on: December 23, 2007, 03:13:10 PM »

I've made a soundclip of the quality I get when I have it on the breadboard. Can anyone confirm this is the actual soundquality?

You can hear the clip here:
http://profile.ultimate-guitar.com/toomuchgear/music/

The 'clean' parts are a clean guitar looped via my DD20. The 'not-so-clean' parts are looped by the Payback.
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Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #181 on: December 23, 2007, 03:16:22 PM »

Isn't your recording volume too high? I read something about it with the lo fi loop junky...
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Auke Haarsma
Posts: 1057

TooMuchGear?


Re: New Effect: Payback
« Reply #182 on: December 23, 2007, 03:27:09 PM »

I don't think so. I have this level of distortion with the rec level high and with the level low. The difference in volume in the clip is caused by me adjusting the playbacklevel-pot.
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Auke Haarsma
Posts: 1057

TooMuchGear?


Re: New Effect: Payback
« Reply #183 on: December 23, 2007, 03:36:36 PM »

Well, I rechecked after your comment. It appears the playback level and the recording level interact. If I record with playback level at max and recording level at 'normal' I get a lot of clipping. If I lower the playback level while recording I get a cleaner sound.

However, it doesn't get much cleaner than the first sample of the clip. Then again, it's a lofi-looper.

And it doesn't loop btw, just one playback and then it stops.
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Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #184 on: December 23, 2007, 04:04:11 PM »

then you must be doing something wrong Smiley which is good, since then there is room for improvement.

Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Auke Haarsma
Posts: 1057

TooMuchGear?


Re: New Effect: Payback
« Reply #185 on: December 24, 2007, 01:54:48 AM »

yeah, could very well be the case. I can trigger playback by touching ground anywhere with my hand. The logic seems very sensitive. I guess it works as designed when boxed.
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Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #186 on: December 25, 2007, 02:27:34 PM »

Do you keep it grounded? If not that might be why it only plays back once
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #187 on: January 15, 2008, 04:04:04 PM »

Ok, I had a go at making a pcb. Could somebody help me find any errors?


Just say which component is wrong, and how it should be, I still have the file in layout creator.
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
The Tone God
Global Moderator
Posts: 5299


Maggie


WWW
Re: New Effect: Payback
« Reply #188 on: January 16, 2008, 11:02:22 PM »

Just an update. I noticed that Digikey is not stocking any of the ISD1600Bs now. Trouble is brewing.

Andrew
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Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #189 on: January 17, 2008, 04:53:47 AM »

Indeed. I received an email from them one week after I got my ICs in. But I think they can be found at other places.
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #190 on: January 18, 2008, 09:14:56 AM »

Schematic has been checked by Auke Haarsma, I edited according to his instruction, I think this should be it now.
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #191 on: January 18, 2008, 01:15:43 PM »

CRAP!  Gate 10 of the ISD needs to get his 5V. I forgot this on the schematic. Errors keep popping up!
Any body else that spots something?
« Last Edit: January 18, 2008, 01:46:24 PM by Valoosj » Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #192 on: January 22, 2008, 12:43:12 PM »


Last time (I hope). Now it should be correct.
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #193 on: February 20, 2008, 04:39:14 PM »

I just finished soldering, something is wrong. I hook up the power to the pedal, the led goes on, and after 20 seconds it goes out. Pushing the record/play button doesn't change the status of the led.
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #194 on: March 31, 2008, 06:17:46 AM »

Tonegod, are you still there? I sent you some PMs, with the layout and a vid of what is going wrong. Apparently it's a grounding problem of some kind, but I can't find out what went wrong. I did everything I normally do.
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
cloudscapes
Posts: 842


Etienne B


Re: New Effect: Payback
« Reply #195 on: February 17, 2009, 08:18:33 PM »

appologies for the necro-bump. I've been having trouble with this build I've partially breadboarded. I'm doing v1.1.
http://www.geocities.com/thetonegod/payback_v11/payback_v11.html

I haven't done any of the opamp buffer parts. for now, I'm just doing the recording and looping logic. started with the recorder, and by grounding pin 2, I succeeded in making it record a short clip, and grounding pin 2 to play it back! with that part of the circuit working, I put it aside and did the 4093 logic. unfortunatelly when I hooked it up, it doesn't work anymore. the record led blinks rapidly for half a second (shorter duration and more rapidly than normal record blinkage) and the led around the 14093 stays on at all times when I have power hooked on.

I couldn't find a place in town that had 4093's so I got 14093's instead, which as far as I can tell are the same thing. is this a problem? you should consider me a total noob at logic switching with these types of components.

I noticed the tone god's post about mislabeled pins
http://www.diystompboxes.com/smfforum/index.php?topic=65575.0
but I'm really confused.  Embarrassed
I've found datasheets for both the 4093 and 14093 and neither of them are the same pinouts, and as far as I can tell neither of them would "support" tone god's advice to switch pins 8 and 10, and 4 and 6. if I did either of these, it seems like the layout diagram would change "logic" in the v1.1 circuit.

http://ece-www.colorado.edu/~ecen4618/cd4093b.gif
http://pdf1.alldatasheet.com/datasheet-pdf/view/11974/ONSEMI/MC14093.html

what should I assume to be true? the pin number swap, or the little pictures representing each of the four triggers, regardless of the pinout?
« Last Edit: February 17, 2009, 08:22:09 PM by cloudscapes » Logged

~~~~~~~~~~~~~~~~~~~~~~
{DIY blog}
{www.dronecloud.org}
The Tone God
Global Moderator
Posts: 5299


Maggie


WWW
Re: New Effect: Payback
« Reply #196 on: February 18, 2009, 01:22:11 AM »

The diagram symbols are correct. Its the pin numbers on the symbols that were messed up. So match the symbols to you datasheet and adjust from there.

Andrew
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cloudscapes
Posts: 842


Etienne B


Re: New Effect: Payback
« Reply #197 on: February 18, 2009, 05:59:45 AM »

alright, thanks!
I matched the symbols and it know works. thank you muchly!
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~~~~~~~~~~~~~~~~~~~~~~
{DIY blog}
{www.dronecloud.org}
Valoosj
Posts: 885


Yorick


Re: New Effect: Payback
« Reply #198 on: February 18, 2009, 08:20:20 AM »

Does your payback work? I spent about a year trying to get it to work, but it never fully did.
Logged

Quote from: frequencycentral
You squeezed it into a 1590A - you insane fool!  icon_mrgreen
Quote from: Scruffie
Well this... this is just silly... this can't fit in a 1590B... can it? And you're not even using SMD you mad man!
kierc
Posts: 126


Kier


WWW
Re: New Effect: Payback
« Reply #199 on: February 18, 2009, 08:22:59 AM »

Where can I get this ISD? would love to build this  Sad
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