Pedal whine
Pedal whine
I have a nice overdrive/boost by Toadworks called, "Meat, Jr."
Recently, it started a low-level whine sound when activated, like a sine wave, no oscillation, just constant.
Would that be a bad cap?
What is the easiest way to diagnose the problem?
Recently, it started a low-level whine sound when activated, like a sine wave, no oscillation, just constant.
Would that be a bad cap?
What is the easiest way to diagnose the problem?
- Nick Sevilla
- on a wing and a prayer
- Posts: 5587
- Joined: Mon Mar 03, 2008 1:34 pm
- Location: Lake Arrowhead California USA
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Haven't tried the shorted jack.
It's more apparent when the pre-amp is gained up, and yep, onna cuppla different amplifiers, with a cuppla different cables, guitars, etc.
It didn't used to do it with a One-Spot, but I'll try and switch that out, I reckon, also.
Basic troubleshootin' first, yep.
The pedal's controls have no effect, and I'm pretty sure it's in the pedal guts.
I will report back.
It's more apparent when the pre-amp is gained up, and yep, onna cuppla different amplifiers, with a cuppla different cables, guitars, etc.
It didn't used to do it with a One-Spot, but I'll try and switch that out, I reckon, also.
Basic troubleshootin' first, yep.
The pedal's controls have no effect, and I'm pretty sure it's in the pedal guts.
I will report back.
If a battery quiets it up, could be that the cap they put on the power jack is drying out, and isn't smoothing like it used to.
Assuming they put one on, most do. But yeah, if it does the same on battery with a shorted jack, you've ruled out input noise and power line noise.
Do you have a scope to look at it?
Assuming they put one on, most do. But yeah, if it does the same on battery with a shorted jack, you've ruled out input noise and power line noise.
Do you have a scope to look at it?
The previous statement is from a guy who records his own, and other projects for fun. No money is made.
If you mix with olive juice, can you tell the difference between listerine and vodka?
Well all the old dodges apply, you can try rigging an audio probe, and tracking the signal, try ithe unit on a battery, short the input jack, etc, etc.
Also never undervalue the worth of taking everything apart, like removing the board, jacks and pot from the case, running some pot and switch cleaer over the salient parts and bolting it all back together again
Well all the old dodges apply, you can try rigging an audio probe, and tracking the signal, try ithe unit on a battery, short the input jack, etc, etc.
Also never undervalue the worth of taking everything apart, like removing the board, jacks and pot from the case, running some pot and switch cleaer over the salient parts and bolting it all back together again
The previous statement is from a guy who records his own, and other projects for fun. No money is made.
Aiight, did all as above.
Shorted cable, different cables = no effect.
Pot and switches are clean, "Fat switch" changes the tone of the whine; no whine if pedal is in bypass.
No problem with the battery - no noise at all.
A couple different power supplies; 1-Spot (9v 1700mA output) gives the whine, a Mr. Power (9v 2A output) oscillates the whine.
Idears?
Shorted cable, different cables = no effect.
Pot and switches are clean, "Fat switch" changes the tone of the whine; no whine if pedal is in bypass.
No problem with the battery - no noise at all.
A couple different power supplies; 1-Spot (9v 1700mA output) gives the whine, a Mr. Power (9v 2A output) oscillates the whine.
Idears?
So, I just swapped in the older-model Meat pedal and, guess what?
Same f*ckin' problem when using the (admittedly inexpensive) power supplies, chained or just this pedal being powered.
It must be a Microsoft-like "design feature", as a battery works fine. (Interestingly, the original Meat pedal [serial # 005] is all real resistors and such on the board - none of that machine-soldered micro-shite like pictured above.)
Too bad - I really like the sound of the pedals, but I refuse to go on stage or even jam, in 2016, using batteries.
So I ordered a Blackstar Boost so mebbe I'll swap that in, or put the Soul Food back on my board, just use these in the bedio.
Same f*ckin' problem when using the (admittedly inexpensive) power supplies, chained or just this pedal being powered.
It must be a Microsoft-like "design feature", as a battery works fine. (Interestingly, the original Meat pedal [serial # 005] is all real resistors and such on the board - none of that machine-soldered micro-shite like pictured above.)
Too bad - I really like the sound of the pedals, but I refuse to go on stage or even jam, in 2016, using batteries.
So I ordered a Blackstar Boost so mebbe I'll swap that in, or put the Soul Food back on my board, just use these in the bedio.
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