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 04-18-2014, 03:20 PM #6861 abyssspecter worlds biggest ego   Join Date: May 2006 Location: NC please, Jim, teach me your ways. Is that resistor going to go through the hot, or the ground? __________________ Gear: Guitars: BC Rich Warlock Dean 88 ME682-In Progress Amps: Carvin SX300 Etc: Clayton 1.0mm picks Planet Waves cables.
04-19-2014, 01:49 AM   #6862
Jim'll fix it.

Join Date: Aug 2005
Location: In the Chamber of Understanding
Technically it doesn't matter but conventionally it would be in the hot side so that goes: hot wire->resistor->EL strip->neutral wire.

As for the math, it's just Ohm's Law and Watt's Law. Here is a PIRE wheel:

It tells you all the combinations of Ohm's and Watt's Law equations. Note that the pic uses W instead of P for the power terms. Most people use P so I will as well.

We know that the thing uses 100v and 0.5W at most and we need to know its resistance and current to be able to figure the series limiting resistor. Looking at the R quadrant we see that R=E^2/P. The square of 100 is 10,000. 10,000/0.5=20,000. So the EL strip has a resistance of 20k ohms.

To find the current draw, we look at the I quadrant and see that I=E/R. 100/20,000=0.005A or 5ma.

If you draw a series circuit of two resistors across a 120v supply and fill in all the known values for the resistors it helps a ton. Unfortunately I can't do that here so I'll make a list. R1 is the EL strip and R2 is the limiting resistor.

R1:
I=0.005A
R=20,000 ohms
E=100v
P=0.5W

R2:
I=0.005A (only one current can flow in a series circuit)
R=???
E=20v (the supply is 120v and 100 of that is already used by the EL strip)
P=???

Now we need to find the resistance of and power dissipated by the limiting resistor R2. Since we know the voltage and current already we look at the R quadrant and find that R=E/I. 20/0.005=4000 ohms. 3900 is the nearest standard or you could use 4200 for a bit of an extra safety margin.

Looking at the P quadrant tells us that P=I*E so 0.005*20=0.1W or 100mW. You should always try to use at least double the calculated wattage so a standard 0.25W resistor is plenty.

Make sense?
__________________
Quote:
 Originally Posted by Telecaster7 I can't imagine a hand made Russian spec Big Muff would be that desirable. Maybe I'll just use both and crush people with my epic russian gain penis.

 04-19-2014, 05:36 AM #6863 Izvire Registered User     Join Date: Jan 2013 Hi, if anyone could tell me ever part I need to completely rewire my Gibson Les Paul Studio 2013, I'd be more than grateful. Basically I want to get rid of the PCB design, and install 50's wiring. Preferably something similar to Slash's setup (I know..). Only got the single wire pickups so I just need what? Pots, caps and what else? I plan on doing the work myself this time, so I just need help ordering the replacements. EDIT: Would this set do? http://www.thomann.de/fi/montreux_8...iring_kit_3.htm I currently have the push-pull knobs but I don't use them since I don't plan on using push/pull pickups. Last edited by Izvire : 04-19-2014 at 05:40 AM.
04-19-2014, 08:16 AM   #6864
Jim'll fix it.

Join Date: Aug 2005
Location: In the Chamber of Understanding
That set will do but you'll be wasting your money on those audiophile tone caps. Plain old film or ceramic is a lot cheaper and will sound exactly the same. You'll save a crap load of money if you order the parts yourself rather than buying a kit like that. Their price is crazy.
__________________
Quote:
 Originally Posted by Telecaster7 I can't imagine a hand made Russian spec Big Muff would be that desirable. Maybe I'll just use both and crush people with my epic russian gain penis.

 04-19-2014, 03:50 PM #6865 abyssspecter worlds biggest ego   Join Date: May 2006 Location: NC Yea, it makes sense. I really appreciate the detailed explination. Now, all theres left to do is make flashy lights happen. __________________ Gear: Guitars: BC Rich Warlock Dean 88 ME682-In Progress Amps: Carvin SX300 Etc: Clayton 1.0mm picks Planet Waves cables.
04-19-2014, 05:04 PM   #6866
-dbv-
Registered User

Join Date: Sep 2009
Quote:
 Originally Posted by Izvire .... Would this set do? http://www.thomann.de/fi/montreux_8...iring_kit_3.htm I currently have the push-pull knobs but I don't use them since I don't plan on using push/pull pickups.

69€ for parts worth max. 10€. . Take a look at ebay, you'll find 500k potis for ~1€ each. The other parts are very low cost too.

04-19-2014, 11:54 PM   #6867
Jim'll fix it.

Join Date: Aug 2005
Location: In the Chamber of Understanding
Quote:
 Originally Posted by abyssspecter Yea, it makes sense. I really appreciate the detailed explination. Now, all theres left to do is make flashy lights happen.

Good luck. Let me know how it goes.
__________________
Quote:
 Originally Posted by Telecaster7 I can't imagine a hand made Russian spec Big Muff would be that desirable. Maybe I'll just use both and crush people with my epic russian gain penis.

 04-20-2014, 03:04 AM #6868 abyssspecter worlds biggest ego   Join Date: May 2006 Location: NC i do know I'm returning the one i have for a shorter one. i don't need 3 meters, and god forbid i try to shorten the wire myself. __________________ Gear: Guitars: BC Rich Warlock Dean 88 ME682-In Progress Amps: Carvin SX300 Etc: Clayton 1.0mm picks Planet Waves cables.
04-20-2014, 07:52 AM   #6869
Jim'll fix it.

Join Date: Aug 2005
Location: In the Chamber of Understanding
If you're returning it anyway try to find one that can work with straight 120v ac or smt easy to work with...
__________________
Quote:
 Originally Posted by Telecaster7 I can't imagine a hand made Russian spec Big Muff would be that desirable. Maybe I'll just use both and crush people with my epic russian gain penis.

 04-20-2014, 01:53 PM #6870 abyssspecter worlds biggest ego   Join Date: May 2006 Location: NC from what I've read, the EL wire/strips are the longest lasting with brightest lights. I've considered LED strips, but at a price point of \$10, EL wire seems in the lead. __________________ Gear: Guitars: BC Rich Warlock Dean 88 ME682-In Progress Amps: Carvin SX300 Etc: Clayton 1.0mm picks Planet Waves cables.
 Yesterday, 06:37 PM #6871 offspring93 offspring93     Join Date: Oct 2008 Location: Germany Hi, I designed a wiring diagram for my hsh-strat (well currently it is not yet a hsh-strat). To me it looks like everything works but I'm not experienced and I hope some of you experts can tell me if this will work properly. Besides the positions I am worried about a few things...: Will there be nasty pop sounds when switching between the positions? Or will there be EMI hum or so because something is not grounded properly? (the electronics cavity is full of shielding foil, so all pot- and switch housings will be grounded nicely) ...I stumbled on this problem in the Ultimate Killswitch Thread..and the coils in my diagram are not completely grounded when not used in some positions..is that ok? I am confused.. Long story short: Can someone please take a detailled look at this wiring diagram? I also have a thread for this but no replies yet. http://www.ultimate-guitar.com/foru...68#post32531068 http://www.ultimate-guitar.com/foru...chmentid=111994 Last edited by offspring93 : Yesterday at 06:39 PM.

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