On 30 Jan 2006 03:36:32 -0800, "larry moe 'n curly"
wrote:

In this picture of four electrolytic capacitors:

http://static.flickr.com/22/93055272_e828b475e8_o.jpg

Which lead is the positive one for each cap?

The black and white dots on the two capacitors on the left are actually
exactly in the middle of the leads.


Wow! That's very old caps! These design of paint on them dates from
60-70's. In 80's started to use blue, orange or yellow monochrome dip
with printings on it. The latest caps for disk, SMD and drop packages
are now printed with laser etching.

By the way, taluam caps don't take very kindly to long storage. Some
may blow up or short out when power applied to them.

Cheers, Wizard