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Capacitors Polarity...

Started by whyckicki, January 18, 2012, 03:44:46 PM

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whyckicki

Hi,

I was wondering if i can use a polarized Cap instead of a non polarized one in the Slambox ?
If yes, in which sens ? Does the polarity still matters or not ?
When I bought my coponents I didn't pay attention to the non-polarity of the C1 (100nF)...

I know that's not a big question but i didn't find any thing about it and I'm in somewhat a very big noob in electronics, the Slambox is my first build.

Thank you.

jtn191

yes, as long as you're absolutely sure the values are the same--units and all. The physical size of the cap might limit you but if it'll fit on the board, it'll work  ;)

whyckicki

So that means that I can put the capacitor in any polarity ?
The value requested on the schematic is 100nF and I use 0.1uF... I think that's the same

jtn191


whyckicki

Ok thank you for you're help :)

I'll post picture once it's done !

ckim715

positive side of the electrolytic goes to the side of the higher voltage, iirc.
-Charlie

jimmybjj

Quote from: ckim715 on January 18, 2012, 04:35:31 PM
positive side of the electrolytic goes to the side of the higher voltage, iirc.


+1
Pcbs no longer available

sgmezei


whyckicki

Hum, higher voltage ok but on the schematic the capacitor is between the input and a nut...
http://www.madbeanpedals.com/projects/Slambox/docs/Slambox_ver.4.pdf

jkokura

What kind of capacitor do you have? I've not heard of polarized 100nF caps before. Are you sure you have the right value?

Jacob
JMK Pedals - Custom Pedal Creations
JMK PCBs *New Website*
pedal company - youtube - facebook - Used Pedals

whyckicki


jkokura

At that point in the circuit, the capacitor is acting as a decoupler from the input to keep DC from interfering. I think the - would go towards the input.

Jacob
JMK Pedals - Custom Pedal Creations
JMK PCBs *New Website*
pedal company - youtube - facebook - Used Pedals

whyckicki

So to be sure, that would make : Input .... [(-)Caps(+)]..... the nut

jkokura

Not sure what you mean by nut. There's no nut in the circuit.

Jacob
JMK Pedals - Custom Pedal Creations
JMK PCBs *New Website*
pedal company - youtube - facebook - Used Pedals

whyckicki

The rest of the circuit... but the polarity I shown was right or not ?