[sdiy] Jim Dunlop Cry Baby Wah-Wah.. 500mH inductor replacement with an inductor simulator circuit.. Feasable ??

[Jean-Pierre Desrochers]

Hi list,

 

I have a guitar pedal board that uses 8 pedals.

The first pedal (receiving the guitar) is a Jim Dunlop Cry Baby Wah-Wah.
The following pedal is a switchable  overdrive with high gain.

Then the pedal chain goes on with 6 other pedals to a final tuner that drives a guitar amplifier. Ok.

4 of these pedals are powered with there separate AC supplies (9VAC, 9VAC, 7.5VAC & 22VAC).

The other pedals are powered using 9VDC standard BOSS supplies.

Here is my problem :

Since the Wah-Wah is connected at the ‘head’ of the pedal chain and uses an internal 500mH inductor in its circuit
it acts like the secondary of a transformer picking up 60Hz

from all the nearby transformers of the board.
I had to unsolder the inductor from the inside PCB and,

using short lenghts of wires connected to it … place it in the Wah-Wah housing
at a ‘specific’ place and angle to get the less 60Hz pickup.

This is annoying.. 

Now I can play with a little back ground hum when the Wah-Wah is activated..
I  was wondering if I could use an active inductor simulator circuit

In place of the 500mH passive inductor.. (??)

Feasable ??

 

Here is the  Jim Dunlop Wah-Wah schematic : 

 



-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20240613/30aa935e/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image001.jpg
Type: image/jpeg
Size: 44073 bytes
Desc: not available
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20240613/30aa935e/attachment.jpg>
-------------- next part --------------
________________________________________________________
This is the Synth-diy mailing list
Submit email to: Synth-diy at synth-diy.org
View archive at: https://synth-diy.org/pipermail/synth-diy/
Check your settings at: https://synth-diy.org/mailman/listinfo/synth-diy
Selling or trading? Use marketplace at synth-diy.org