wah pedal - isolated grounds? - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 17th November 2006, 12:12 AM   #1
diyAudio Member
elementx's Avatar
Join Date: Jul 2005
Location: Cleveland OH
Default wah pedal - isolated grounds?

a quick question. the two grounds on the input/output of a wah pedal... do they have to be isolated? The schematic seems to show them as not really connected, and most connectors are plastic. I want to use 1/4 metal jacks, and I'm worried if it will not work as they will be both grounded to the chasis.

  Reply With Quote
Old 17th November 2006, 09:14 AM   #2
sreten is offline sreten  United Kingdom
diyAudio Member RIP
Join Date: Nov 2003
Location: Brighton UK

your schematic does not show the battery switching arrangements,
and as you say does not show the grounding arrangements.
The case should be grounded, but not used as the output connection.

You need a switching jack for the input, You can get insulated /
isolated metal jack sockets.

  Reply With Quote
Old 17th November 2006, 03:26 PM   #3
expert in tautology
diyAudio Member
bear's Avatar
Join Date: Apr 2002
Location: New York State USA
better be grounded!

If you want the guitar amp isolated from the wah/input in terms of ground, use a 1:1 transformer at the output. The incoming signal into the transformer still needs to be grounded to the Batt and the input and the ground side of the circuit.

http://www.bearlabs.com -- Btw, I don't actually know anything, FYI -- every once in a while I say something that makes sense... ]
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
What is the difference between an isolated IC and a non-isolated IC? DJ Exprice Chip Amps 16 20th June 2006 06:34 AM
Should grounds go like this? leander Solid State 18 17th November 2005 11:55 PM
PSU sharing grounds neutron7 Parts 2 5th March 2005 12:23 AM

New To Site? Need Help?

All times are GMT. The time now is 09:39 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2