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Old 8th June 2010, 08:25 PM   #1
ChrisA is offline ChrisA  United States
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Default Source for 25W 5 Ohm pot or reostat?

I need six of these. I have a pair of vintage stereo speakers and I'm rebuilding the crossovers. the old pots are not in good shape and a few are broken. Each speakers uses three.

There are ceramic wire wound pots, about 1.5 inches in diameter marked 25W and 5 Ohms. But I'll take anything close.

I have found a couple sources but they want $85 each which is nuts.

Worst case is I'll have to use a rotary switch and fixed power resistors.
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Old 8th June 2010, 08:57 PM   #2
Spiny is offline Spiny  United Kingdom
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This would work I think but still pricey us.element-14.com

There are a couple that might do here .leedsradio.com

Last edited by Spiny; 8th June 2010 at 09:13 PM.
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Old 8th June 2010, 09:18 PM   #3
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Are you sure they are not plain old L-pads? Those will only cost you $5-$10 each.
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Old 8th June 2010, 09:59 PM   #4
ChrisA is offline ChrisA  United States
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Quote:
Originally Posted by leadbelly View Post
Are you sure they are not plain old L-pads? Those will only cost you $5-$10 each.
Here is the schematic http://www.infinity-classics.de/infi...ical_sheet.pdf

Perhaps I could use two terminals from an l-pad and ignore the third?
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Old 8th June 2010, 10:02 PM   #5
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Sweet speakers! I used to drool over those when I was a broke college kid.

I'd go for the L-pad myself.
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Old 8th June 2010, 11:39 PM   #6
Enzo is offline Enzo  United States
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Mouser: 8 ohm 25w for $28, and they have seven in stock.
RHS8R0E Ohmite Rheostats

A couple other candidates in that price range but only 1 or 2 in stock.


Check out Fair Radio, a surplus outlet, they show some 25w rheostats in 6 ohm and 7 ohm for $3.25 each. That ought to work.
Fair Radio Sales Company Inc.

I like Fair Radio, they been around for a long long time



Say, do these mount on the jack panel for adjustment by the user, or are they internal? If internal, could you not mount three of the adjustable wire-wound ceramic resistors inside and set them where needed?
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Old 9th June 2010, 02:19 AM   #7
burbeck is offline burbeck  United Kingdom
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Hi try here Speaker Volume Controls
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