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Old 05-20-2014, 03:20 AM   #1
Weaponxclaws
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Anybody with electrical experience?

I don't know a whole lot about circuits and electricity and all that noise so here's a question worded the best I can:

I have an LED device that can be connected to a 9V battery. The only way to turn it on/off is to connect or disconnect the battery. This LED is going to be inserted into a routed cavity in a guitar. I want to know if there is a way to create a "break" or "choke" in the circuit so that I can leave it connected to the battery always but have an on/off switch essentially that I can have on the top of the guitar. Sorry if my question doesn't make sense, but like I said, I don't know a whole lot about wiring.

tl;dr is there a way to leave a device connected to a battery and essentially insert an on/off switch in the middle of the circuit?
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Old 05-20-2014, 03:29 AM   #2
vince1991
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you answered your own question i believe.. just buy an on/off switch and connect one of the wires coming from the battery to the switch.. connect other end of the switch to the LED device.

the hard part is making a hole in your guitar to fit the switch
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Old 05-20-2014, 03:43 AM   #3
BjarnedeGraaf
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connect it to a two way switch, only you'd have to build that into your guitar. although why would you want to turn off a led in a guitar while playing? and why connect it to a 9V Battery, just connect it to some other cables and I'm sure it'll work fine
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Old 05-20-2014, 03:49 AM   #4
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actually OP, if you have to ask that question just.. don't touch anything. go to the store and get a pack of glow-sticks and maybe some reflective safety stickers
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Old 05-20-2014, 03:56 AM   #5
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I feel like it's already been said (even in your own post), but go to RadioShack (if those places still exist), buy the most simple on/off switch, cut the wire between the battery and LED somewhere, and solder in the on/off switch at that point.
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Old 05-20-2014, 04:27 AM   #6
Weaponxclaws
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Quote:
Originally Posted by snipelfritz
I feel like it's already been said (even in your own post), but go to RadioShack (if those places still exist), buy the most simple on/off switch, cut the wire between the battery and LED somewhere, and solder in the on/off switch at that point.


Thanks, I was unaware these existed. I thought there would be more work to it than that... hmmm

And whoever said the issue is getting it into the guitar? Taken care of

A holesaw and a router and it's firmly planted. Just got to make room for a switch now..
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Old 05-20-2014, 04:37 AM   #7
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...Why?
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Old 05-20-2014, 04:41 AM   #8
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A circuit is basicaly just a circular route for power. You have a power source (battery) and you have the item to be powered (light bulb)
The circuit goes from the power source to the item to be powered and back to the power source again. Break that circular route in any place and the item will no longer be powered.

A switch is just something that makes a temporary break in a circuit.

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Old 05-20-2014, 04:48 AM   #9
Eastwinn
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9V for an LED? you picked a bright one try not to blind the crowd. ps: make sure you have the appropriate resistor behind the LED or else you'll fry it.
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Old 05-20-2014, 04:56 AM   #10
vince1991
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Quote:
Originally Posted by Weaponxclaws
Thanks, I was unaware these existed.


how...

show
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Old 05-20-2014, 06:21 AM   #11
macaroni
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No need for a router or holesaw if the switch is small. Just drill it.
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Old 05-20-2014, 07:20 AM   #12
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Quote:
Originally Posted by Eastwinn
9V for an LED? you picked a bright one try not to blind the crowd. ps: make sure you have the appropriate resistor behind the LED or else you'll fry it.

Nah, if it's lots of LEDs (e.g lights in fretboard) or something it's not that excessive. You're right though, if it's just a singly LED it's a bit ridiculous.

I run the LED's in my amp head off a 9V attached to the back of the head, with a switch on the battery pack itself (as does the other guitarist in my band... means the heads both glow blue on stage )

show off pic
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Old 05-20-2014, 01:21 PM   #13
Eastwinn
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disarm: so long as the LEDs run parallel, you're right. i figured he was talking about one LED.
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Old 05-20-2014, 05:56 PM   #14
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Quote:
Originally Posted by DisarmGoliath
Nah, if it's lots of LEDs (e.g lights in fretboard) or something it's not that excessive. You're right though, if it's just a singly LED it's a bit ridiculous.

I run the LED's in my amp head off a 9V attached to the back of the head, with a switch on the battery pack itself (as does the other guitarist in my band... means the heads both glow blue on stage )

show off pic



You own a ****ing H&K head?
Well jel
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Old 05-20-2014, 06:02 PM   #15
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ppl with electrical experience come w/ a price bruv. want my paypal?
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Old 05-20-2014, 06:28 PM   #16
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Quote:
Originally Posted by SkepsisMetal
You own a ****ing H&K head?
Well jel

Yep, it's a workhorse alright - had it since 2008 and no faults, only a couple of re-valves. Love it!

If you like the amp though, should see my real pride and joy(s)

show
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Old 05-20-2014, 06:32 PM   #17
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Stop showing off pls

Some sexy gear you got bud
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Old 05-20-2014, 06:35 PM   #18
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At least I used spoiler tags Eventually, I'm sure most people hit a point where they start selling all the stuff they don't want/need any more and buy some high-end gear anyway. I mean, I've sank a good few thousand into recording gear over the last few years too, but if I dazzle audiences with shiny gear it won't matter how many mistakes I make, right?



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Old 05-21-2014, 03:03 AM   #19
Weaponxclaws
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For those worried about the LED being too bright...

It's actually an Iron Man Arc Reactor made of like 15 smaller LED lights. It still glows pretty bright with the 9V so I'm going to put tinted plexiglass over it to dull it a little.
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