Tri-Rebel bbw with MR board diagram

[darkeyedkid]

Here's my guessing rendition of a tri-rebel bbw with the two blues wired in parallel. According to my info I don't need resistors for the leds with the battery and board I'm using. But if Each diode is about 3.5v and the board needing 4.5-6v, it seems that the diodes will be underpowered as well as the board. 101_5187-1.jpg

[Forgetful Jedi Knight]

You have the LED wiring wrong. Put a wire from each LED (+) pad to the board (+) wire and do the same for the (-) pads to the negative (-) wire.

And the (+) and (-) are on either side of the LED.

[darkeyedkid]

lolz, do I at least have the proper battery?

kk, how's this? And won't the two diodes be underdriven?

lukesoundwiring1.jpg

[Forgetful Jedi Knight]

Possibly, but not by much. But how does that old saying go... "Beggars can't be too choosy".

[darkeyedkid]

Well what if I used a 7.4v battery and used a resistor between it and the board? That way each diode will get about the right amount of voltage yes? As long as they're wired in parallel. Did I get the wiring right that time?? 8/ With the 7.4v will the 20mA DynaOhm™ Variable Resistor be enough for the a/v switch??

[Forgetful Jedi Knight]

It looks like you got it right.

As far as using a 7.4V pack, you could try it, but you waste energy, and I'm not sure that it would all fit in your hilt. I don't know how much power the MR board puts out, so I can't really answer that, though if JGJ says he did 2 greens in parallel, then you'll be ok. The DynaOhm should still work with your switch.

[darkeyedkid]

I'd rather waste some energy than have it be underpowered. And that sink tube is a good 12" long. It should all fit. The MR cheapy wiring diagram thread says that for at least one of them, it should be run with a 4.5-5v battery. And the resistor between the battery and board should work the same as a resistor between the battery and led. But regardless, I should probably get the lowest amperage in the 7.4 volt battery selection shouldn't I?

[Forgetful Jedi Knight]

Current won't be the main "issue" the voltage would be. The current would be the same even if you used the 3.7V you originally had in mind.

[darkeyedkid]

But the led calculator would work alright for calculating the resistor I'd need for a 4.5-6v soundboard? Which, again, is what the MR wiring forum says one is?

[Forgetful Jedi Knight]

As long as you use the right values. You would CAREFULLY need to go over the specs for the MR boards. I don't know them offhand, other than the voltage requirements. You need to know what the max current they can take is. I would guess it's about an amp, but that's strictly a guess on my part.