Dunlop Crybaby GCB95 Wah Wah Guitar Pedal Easy Voice Mod

When it comes to guitar pedals, the Dunlop Crybaby is a classic. And while it’s great for those traditional wah sounds, it can be used for so much more. In this blog post, I’m going to show you how to easily mod the voice of your GCB95 pedal for even more flexibility and tone control. So if you’re looking to add some new dimensions to your sound, read on!

Earlier this morning, while I was slipping Jamaican Blue Mountain-flavoured Nespresso coffee, I mused over what day’s impromptu project would keep me occupied. It was too early to embark on a more ambitious project requiring me to turn on amps.

So I ran to the basement and grabbed the crybaby and sat at the table and poured a refill before disassembling it.

I never quite liked the “highs” through the pedal, especially when playing my Telecaster with the pickup selector in the bridge position. My Tele doesn’t twang. It TWANGS!!!

If your Crybaby Wah Wah GCB95 makes your ears bleed, here’s a little mod to lower the high-end. If you’re comfortable with soldering and desoldering, the change is pretty simple. Replace the 33K ohm R7 resistor by a 68K ohm.

Today (Sunday) all the parts stores are closed due to our Quebec government’s last-minute decree of keeping all retail stores for the first three Sundays in January closed but I digress. I couldn’t run to the store so I found an old DSL alarm panel and I lifted a 68K ohm resistor (sure, I’ll replace it one day.)

After cleaning up the pot gear and putting fresh lithium grease — I guess we’ll have to clean the pot gear

I guess we’ll have to clean the pot gear

Using a Phillips #2 screwdriver, remove the 4 screws holding the bottom plate on (with the grommets).
Disconnect the connector header
Locate R7 between the output jack and the FASEL inductor, then with your soldering iron and desoldering pump, carefully remove it.
Ensure that the solder pads have been properly cleaned so the new 68K resistor can be easily inserted (don’t overheat the solder pad or it will lift!)
Re-assamble everything and go try it.

And that’s it!

Thanks for wah wah mods for the how-to and the good theory behind some of the most popular pedals! https://www.wah-wah.co.uk/diy.html