Looking for BIG capacitors.

phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org phiscock-g851W1bGYuGnS0EtXVNi6w at public.gmane.org
Wed Jul 4 19:43:30 UTC 2007



> Anyone know of a place locally that sells HIGH value
> capacitors? Or am a looking at the mail order route?

I was astonished to see in the window of an electronics store on Yonge
street a 1 farad capacitor. I assumed that such a beast would be the size
of a Markham Mansion, but not so: it was about the size of a breadbox. I
gather that these things are used in automotive systems to help with the
production of the gonzo bass so loved by males with small cars and even
smaller self-esteem.

So you might have a look through auto-audio suppliers. You might also find
one of these referred to as an 'ultra-cap'.

Of course, you can parallel up a bunch of smaller caps to make one large one.

Generally speaking, it's a good idea to get the Digikey catalogue (now the
size of a telephone book) and look in that to get an idea of what's
available. Digikey deliver the next day to Toronto and the shipping charge
is reasonable. We use them all the time for prototype parts.

> Semi-related question, as the capacitor is to be used
> in a Linux infrared remote control box, I am also
> looking for a small project box, final size of which
> will depend of the physical size of the above
> capacitor, but ideally about 2" x 2" x 2" and one side
> transparent as far as IR is concerned. Sayel seems to
> be the best bet there, but none of what I have seen
> there is quite ideal. Again, any ideas?

Check out the plastic boxes produced by Hammond:
http://www.hammondmfg.com
If you find something there, I believe that Active Electronics in
Willowdale will order it for you. Talk to Bibi, tell her Peter sent you
;).

-- 
Peter Hiscocks
Syscomp Electronic Design Limited, Toronto
http://www.syscompdesign.com
USB Oscilloscope and Waveform Generator
647-839-0325

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