what current limiting resistor to use for a guitar pedal led

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What resistors exercise I need for LED's?

• Thread starter TubeeTuberton
• Beginning date Oct 14, 2008

• #i

I am following this diagram on my DIY True Bypass Looper and was only curious every bit to what resistors I volition need for the LED's.

This is the design I am following, the only change being my tuner will be in front providing a buffer. And then information technology will exist four channel looper. Don't remember how I plant information technology...?

http://www.guitarforums.com/furnishings/27-diy-true-bypass-looper.html

The diagram for this guy's shows what looks like iv.7K. (click "this layout" on pinnacle of page in thread)

All my parts are coming from Pedal Parts. 5mm LED'due south. Thank you.

• #2

I am post-obit this diagram on my DIY True Featherbed Looper and was simply curious as to what resistors I will need for the LED's.

This is the design I am following, the only change being my tuner will be in front providing a buffer. So it volition be 4 channel looper. Don't recollect how I found it...?

http://www.guitarforums.com/furnishings/27-diy-true-bypass-looper.html

The diagram for this guy's shows what looks like 4.7K. (click "this layout" on top of page in thread)

All my parts are coming from Pedal Parts. 5mm LED's. Cheers.

For the most part it doesn't really matter, but it will affect the brightness of the LED. I utilise 2.2k and information technology seems to be adequately vivid (unremarkably a little brighter than most stock factory pedals.)

• #3

Use my LED-resistor calculator:

http://www.muzique.com/schem/led.htm

20ma is a practical limit for near all LEDs... only less current will make for longer battery life. I suggest 5ma. More ma. = brighter LED, Less ma. = longer battery life

regards, Jack

• #4

I am following this diagram on my DIY True Bypass Looper and was just curious as to what resistors I will need for the LED'southward.

This is the design I am following, the simply alter existence my tuner will be in forepart providing a buffer. So information technology will be 4 aqueduct looper. Don't remember how I plant it...?

http://www.guitarforums.com/effects/27-diy-true-featherbed-looper.html

The diagram for this guy's shows what looks like 4.7K. (click "this layout" on height of page in thread)

All my parts are coming from Pedal Parts. 5mm LED's. Thank you.

two.2K works for me

• #6

Resistor Ohms = (Vs - Vf) / I * 1000

Vs = Volt supply
Vf = LED Forwards Voltage
I = Led electric current in mA

Have fun

doei! ®
Faizz

• #7

If I could just sidetrack rather than hijack...
If I want to use 2 4.v volt loftier power LEDs for a 9V TB pedal, should I wire them series and not utilise a resistor Not a big expert on electronics I'm afraid.

• #viii

If I could merely sidetrack rather than hijack...
If I desire to use 2 four.v volt high power LEDs for a 9V TB pedal, should I wire them series and non use a resistor Not a big adept on electronics I'm afraid.

AFAIK you can't wire LEDs in serial - wire them in parallel and use a resistor of half the value that y'all would utilise for one LED.

• #10

AFAIK you tin't wire LEDs in series - wire them in parallel and utilize a resistor of one-half the value that you would use for ane LED.

Pity. was looking for a way to reduce wiring.... nevermind.

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Source: https://www.thegearpage.net/board/index.php?threads/what-resistors-do-i-need-for-leds.452261/

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