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Understanding Parts

Started by bamesbotter, July 06, 2011, 07:00:25 PM

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bamesbotter

Hey there. I'm pretty new to building pedals but I hope to get better.

On the parts list for the Slambox some values are 5k1. Is this an older way of putting 5.1k resistors? Also on the topic of resistors, 1% metal film are recommended, right?

A capacitor is 100n. What is that value representing?

Finally, a diode is 9.1v Zener. Does anyone have a link to either Small Bear or similar suppler that sells it?

Thanks everyone.

nzCdog

#1
Hey man.  Congrats on startin your first build, mine was a slambox too! :)

Metal film resistors are tighter tolerance than carbon film.  In most pedal build it doesn't matter which you use, but basically that means they are closer to their stated value (within 1%)

100n is the same as 0.1 uf. Basically 1000 pF is 1nF. 1000 nf is 1uF.  Have a look at this cool site to learn lots about pedal electronic parts...  
http://www.beavisaudio.com/techpages/

5.1k Resistors
http://www.taydaelectronics.com/servlet/the-583/1-pct--1-fdsh-4W-0.25W-5.1K/Detail
9.1v Zener Diode
http://www.taydaelectronics.com/servlet/the-667/1N4739A-1N4739-4739-Zener/Detail

Good luck :)

bamesbotter

Thanks for the support.

I'll go with metal 1% for smaller value resistors and Film 5% for the 10M resistors.

Thanks for the links too. Very helpful!  :)

bigmufffuzzwizz

I just noticed Tayda is carrying more poly film box caps. They have the 100n so you'd be able to get them all in one stop!  :)
Owner and operator of Magic Pedals


Haberdasher

Quote from: bamesbotter on July 08, 2011, 09:43:59 PM
Is this what you're referring to? Will these work?
http://www.taydaelectronics.com/servlet/the-2288/0.1uF-100V-5-pct--Polyester/Detail
Yep, those will be fine.  5mm lead spacing and all, good price too.
Looking for a discontinued madbean board?  Check out my THREAD

FABBED PCB's FOR SALE:
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bamesbotter

Probably my last question,

Ordering capacitors, do all the caps have to be 25V rated or is 50V alright for electrolytic?

bigmufffuzzwizz

Quote from: bamesbotter on July 08, 2011, 11:49:41 PM
Probably my last question,

Ordering capacitors, do all the caps have to be 25V rated or is 50V alright for electrolytic?

Since your only gonna be applying 9 volts of power, 25V will work just fine. If the project your doing is using more than 25V, make sure your caps are 36V-50v to be safe.
Owner and operator of Magic Pedals

bamesbotter

Quote from: bigmufffuzzwizz on July 08, 2011, 11:53:55 PM
Quote from: bamesbotter on July 08, 2011, 11:49:41 PM
Probably my last question,

Ordering capacitors, do all the caps have to be 25V rated or is 50V alright for electrolytic?

Since your only gonna be applying 9 volts of power, 25V will work just fine. If the project your doing is using more than 25V, make sure your caps are 36V-50v to be safe.

If I use 50V to save from shopping around, will it operate just the same?

nzCdog


Quote from: bamesbotter on July 08, 2011, 11:59:41 PM
If I use 50V to save from shopping around, will it operate just the same?

Yes... the only difference with higher voltage caps may be in size is all