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Unread 08-28-2017, 10:15 AM   #1
The Elephant in Your Room
 
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Light mod on Dunlop Crybaby

The guys in my band generously gifted me with a Dunlop Crybaby (oh man I love it!) but I've noticed there's no on/off light so it can be hard to tell at points if it is on or off. I want to mod it with a short strip of purple LEDs which will not only look rad but more importantly function as an on/off indicator. Here's where I'm at with it:

1. The pedal runs off 9V DC
2. The lights run off 12V AC
3. The capcitors in the pedal are rated to 16V at the lowest-rated cap, which means it could theoretically run on 12V just fine.
4. I don't know if the resistors would handle 12V though.

My idea is that if the rest of the pedal could handle 12V DC, I could run a small inverter off the on/off switch and run that to the LED strip. Presto indicator light?

Anyone have any thoughts on this? I don't want to break it.

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Unread 08-29-2017, 10:33 AM   #2
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Are those lights the only option? I definitely think I've seen 9V powered lights before.
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Unread 09-06-2017, 02:49 PM   #3
The Elephant in Your Room
 
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So turns out the lights do run on DC; I'm a bit dumb about electrical stuffs apparently. And they will run on 9v, but not as bright as with 12V. A voltage stepper to go from 9v to 12v running off the main switch should do the trick. I'll just have to find one small enough to fit inside the pedal's cavity. The real question in my mind now isn't whether this can be done or how easily, but: will it interfere with the signal going through the pedal?
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Unread 09-07-2017, 11:42 AM   #4
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Quote:
Originally Posted by Ben Toast
So turns out the lights do run on DC; I'm a bit dumb about electrical stuffs apparently. And they will run on 9v, but not as bright as with 12V. A voltage stepper to go from 9v to 12v running off the main switch should do the trick. I'll just have to find one small enough to fit inside the pedal's cavity. The real question in my mind now isn't whether this can be done or how easily, but: will it interfere with the signal going through the pedal?
From a noise perspective, it might. You will also likely need to run a different switch (3PDT) to make it work as well.
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Unread 09-09-2017, 10:51 AM   #5
The Elephant in Your Room
 
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From a noise perspective, it might. You will also likely need to run a different switch (3PDT) to make it work as well.
Yeah that's what I'm worried about. Swapping the switch will be fine; electromagnetic shielding will be an interesting challenge as the cavity of the pedal isn't exactly crowded but the main board is right in the center which makes working around it challenging.
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