Battery Snap - What Am I Doing Wrong?

joelorigo

joelorigo

Well-known member
I am trying use a battery snap to power a pedal and I am not getting the LED to come on. have tried more than one battery, pedal and snaps. What am I doing wrong? I have a small collection of battery snaps from Godlyke and Voodoo Lab. The reason why I am even trying this is because I am looking into one of these battery power boxes to power my fuzz pedals:
www.kingtoneguitar.com

Battery Box 4X - KingTone

The Kingtone Battery Box: Power your pedals with batteries for improved tone and reduced noise. Please allow up to 5 days for shipping. Video Sneak Peek Here
www.kingtoneguitar.com www.kingtoneguitar.com

Vertex Battery Power Supply | vertexeffects.com

Want a power supply that gets best possible tone out of your pedals? What if the answer is 9V batteries? Believe it or not, some of the most discerning “tone-conscious” guitarists like Eric Johnson, Scott Henderson, Michael Landau, and Josh Smith (to name a few), all prefer cheap “Dollar Store”...
www.vertexeffects.com
IMG_5726.jpg
 
joelorigo said:
Yes, I have tried this with 4 pedals that were working properly last time I used them, which was recently.
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Sorry, I should have specified “when powered by the battery clip alone”. Be aware though, if you are powering an older style fuzz, esp w/ Ge trannys, you might need to use a positive tip plug. Just be sure to match what the manufacturer states
 
peccary said:
Most pedals will be center-negative. The 9v battery snaps I have that go to an adapter like those are all center-positive. I'd check that with a DMM first. If that's the case you can snip the wires and re-solder it back on with black to red and red to black.
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Ah, that makes sense. All the pedals I have tried are center negative. So if that is the issue, if I go try these snaps with my Fulltone 69, it should work, right? And I couldn't use one of the above battery box units with the center positive Fulltone 69, right?
 
joelorigo said:
Ah, that makes sense. All the pedals I have tried are center negative. So if that is the issue, if I go try these snaps with my Fulltone 69, it should work, right? And I couldn't use one of the above battery box units with the center positive Fulltone 69, right?
Click to expand...
I did try my snaps and they all worked with the 69
 
Robert said:
I have a PCB partially drawn up for one of those.
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Do you mean a simple box to stick batteries in with connections to the jacks (akin to the Dual Effects Loop Switch),
or
something along the lines of: power coming from a PSU into the "battery" box with device(s) like GigRig's Virtual Battery dishing out 9V sim / dying-battery sim etc... ?


@joelorigo — have you tested the pedals with the proper polarity yet (ie centre-negative)?
Hopefully they all had polarity protection when you were testing them with centre-positive; a protection-diode is easy to replace but the rest of the circuit may not be.
 
Feral Feline said:
@joelorigo — have you tested the pedals with the proper polarity yet (ie centre-negative)?
Hopefully they all had polarity protection when you were testing them with centre-positive; a protection-diode is easy to replace but the rest of the circuit may not be.
Click to expand...
Hi, yes everything is working fine. I just bought a used v1 of the Vertex box. It works!
 
Feral Feline said:
Do you mean a simple box to stick batteries in with connections to the jacks (akin to the Dual Effects Loop Switch),
or
something along the lines of: power coming from a PSU into the "battery" box with device(s) like GigRig's Virtual Battery dishing out 9V sim / dying-battery sim etc... ?


@joelorigo — have you tested the pedals with the proper polarity yet (ie centre-negative)?
Hopefully they all had polarity protection when you were testing them with centre-positive; a protection-diode is easy to replace but the rest of the circuit may not be.
Click to expand...

The last vero build I did (a DAM 25-17) I used one of those adapters to fire it up for the first time. It took about 20 or 30 seconds for the JRC4558 to start putting off heat and I realized what I'd done.

It's still sitting near my bench to serve as a reminder - the time sunk in to that (I'd had it drilled, mounted and wired - talk about confidence!) and the literal instant it took to kill it was like getting stabbed in the guts - and that's when I turned to PCBs :ROFLMAO:

The good news about hard learned lessons is that they tend to stick with you.
 
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