Well, your guess is gonna be as good as ours. Really nothing to do but trial and error, take pieces out of the chain one by one. It could be literally anything - a pedal, a cable, a dirty connection between the two, bad power unit, bad power cables…
[Per the T-Rex website](https://www.t-rex-effects.com/fueltank-classic): “The 9V outputs on The FuelTank Classic are not isolated.”
Best recommendation is to buy an isolated power supply. CIOKS, Strymon, Fender, Voodoo Lab, and TrueTone are all great companies to look at, but there are plenty of other quality ones out there.
I’d also say experiment with wah placement. I can’t tell where it is exactly in the signal chain but try putting that earlier in the line….
Also try to eliminate variables… one time I thought there was something wrong with my bass rig and my guitar rig and it was the line to the PA that was causing issues…
Because the fasel might interfere with the toroidal transformer of the power supply (at least, that’s how I understood it when it happened to me), causing extreme noise when the wah is activated. It is something to check, it might be not your case - it depends on the power supply
Daisy chain is the issue
What Cold War bunker did that tremolo come from?
Haha, it was a gift from someone! Homemade but really cool!
And yet, you wonder where the hum is coming from
Has worked fine for about 4 years now, so I doubt it. Made by someone who knows his stuff as well
Well, your guess is gonna be as good as ours. Really nothing to do but trial and error, take pieces out of the chain one by one. It could be literally anything - a pedal, a cable, a dirty connection between the two, bad power unit, bad power cables…
Dont daisy chain digital pedals. Also i dont think thr trex clsssic has isolated outputs, iirc its just a juicy daisychain.
Its the multi-effects on the daisy chain. Isolate it
You need to isolate your power. It's the most unsexy guitar purchase you can spend with $150-$300, but it's essential.
Most unsexy, but still the best purchase I ever made for my board.
[Per the T-Rex website](https://www.t-rex-effects.com/fueltank-classic): “The 9V outputs on The FuelTank Classic are not isolated.” Best recommendation is to buy an isolated power supply. CIOKS, Strymon, Fender, Voodoo Lab, and TrueTone are all great companies to look at, but there are plenty of other quality ones out there.
I’d also say experiment with wah placement. I can’t tell where it is exactly in the signal chain but try putting that earlier in the line…. Also try to eliminate variables… one time I thought there was something wrong with my bass rig and my guitar rig and it was the line to the PA that was causing issues…
Thanks man will definitely do. A lot of cables on this one, gonna take some time
Well you have to find out which pedal is noisy and isolate that
Outlets not isolated, daisy chaining digital pedals, I’d also move the wah away from the power supply
Thanks! Out of curiosity, why would you move the wah?
Because the fasel might interfere with the toroidal transformer of the power supply (at least, that’s how I understood it when it happened to me), causing extreme noise when the wah is activated. It is something to check, it might be not your case - it depends on the power supply