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Do capacitors on color organs have palarity?

What type of cap is it? If it's a small disc cap, no. If it's a small metal cylinder, 99% yes, and it should be marked with a stripe on one side indicating the negative side. Most tantalum caps are polarized and you have to look pretty closely to see the "+" stamp on the very small ones. Tantalum caps are pricey and aren't used in kits very often. They look like a small tapered blob of hard plastic. If you're not sure what you have, can you toss up a pic?

Halloween Forum - Calloween's Album: odds and ends. - Picture

I can't really see anything in that pic, it's pretty fuzzy. Do you have a pic of just the capacitor? On the board I can make out the triac and the opto-isolator, but not much else. Is the cap already installed?

I think it is the yellow rectangle. Its says mex/tenta mkp 0.1 uf k x2 275vac 40/100/21 en 132400ce 250vac

I can't find any documention at the Tenta Electronics site for that P/N. Does the assembly instruction spec a particular position for installing the cap? If not, then I think it doesn't matter.

Its in japanese.

It looks like an AC filter capacitor.
AC Capacitors don't have polarity.

What Vellaman kit is that?

SIMPLE ONE CHANNEL LIGHT ORGAN

I have 3 kits.

Originally Posted by bradbaum

It looks like an AC filter capacitor.
AC Capacitors don't have polarity.

What Vellaman kit is that?

Thanks, Brad. I work mostly in DC - the first thing that comes to mind is a cap's polarity.