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DIY Stompboxes => Building your own stompbox => Topic started by: Bullet79 on January 19, 2011, 01:04:13 PM

Title: dynacomp (tonepad) loud popping
Post by: Bullet79 on January 19, 2011, 01:04:13 PM
it has 4.7m at the input.... what can i do more?
Title: Re: dynacomp (tonepad) loud popping
Post by: JDoyle on January 19, 2011, 02:45:57 PM
Read and follow the instructions in "DEBUGGING - What to do when it doesn't work"

You gave far too little information for anyone to ever be able to help you.

Regards,

Jay Doyle
Title: Re: dynacomp (tonepad) loud popping
Post by: Bullet79 on January 19, 2011, 04:57:27 PM
it already had 4m7 pulldown resistor.. but still pops.. where to put the 'fx out' pulldown resistor..?
Title: Re: dynacomp (tonepad) loud popping
Post by: JDoyle on January 20, 2011, 08:39:09 AM
See - I thought your first post meant that you had 4.7mV on the input. "m" means milli-, not mega, which is "M"

You don't need a pull down on the output, the level pot already serves to do the same thing.

No one will be able to help you without more information.
Title: Re: dynacomp (tonepad) loud popping
Post by: Govmnt_Lacky on January 20, 2011, 09:05:28 AM
Quote from: JDoyle on January 19, 2011, 02:45:57 PM
Read and follow the instructions in "DEBUGGING - What to do when it doesn't work"

You gave far too little information for anyone to ever be able to help you.

Regards,

Jay Doyle

+1. Definitely read the DEBUG thread and repost with more information. It will get you answers faster.  ;D
Title: Re: dynacomp (tonepad) loud popping
Post by: johnravacio on May 09, 2011, 11:08:14 AM
@Bullet79: Any news at this? I'm having the same problem as this (loud popping when you turn on the switch).  I built the dyna/ross comp with RoDYMod from tonepad. Thanks!
Title: Re: dynacomp (tonepad) loud popping
Post by: bluesdevil on May 09, 2011, 05:07:14 PM
Let's pile up... I also had a loud pop when engaging footswitch with my build last year, but just dismissed it as amplifying mechanical noise of the 3pDT.
Title: Re: dynacomp (tonepad) loud popping
Post by: Xavier on June 02, 2011, 10:16:19 AM
One more to pile up..............built using GEOFEX's schematic below

(http://www.geofex.com/FX_images/dynacomp.gif)

Anybody experienced the same issue ?. I see no output cap, could it be the case ? LED popping ?
Title: Re: dynacomp (tonepad) loud popping
Post by: Steve Mavronis on June 02, 2011, 02:13:15 PM
Try wiring it to a 3PDT this way. The PCB input will be grounded when you switch. It eliminated having pops in my builds of a custom 250 Overdrive and Dyna Comp:

http://gaussmarkov.net/wordpress/thoughts/wiring-up-a-1590b/
Title: Re: dynacomp (tonepad) loud popping
Post by: Xavier on June 03, 2011, 02:54:53 AM
Thanks for the suggestion Steve, today I'll try , along with Aaron's LED popping mod. I hope this solves the issue.