| wire wound resistors? [message #332682] |
Fri, 11 April 2008 12:43  |
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 J.J. Blair
Messages: 9741
Registered: May 2004
Location: by the sea & sand |
Platinum Member |
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Does anybody know where one can find non-inductive, wire wound resistors, that aren't enormous with wattage ratings unnecessary for audio? I got some through mouser to try, but I can;t find resistance like 100MΩ, and the smallest rating is like 5 watts.
Basically, something along the lines of what was used in 47s.
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| Re: wire wound resistors? [message #332722 is a reply to message #332682 ] |
Fri, 11 April 2008 14:04  |
JGreenslade
Messages: 754
Registered: April 2004
Location: UK |
Gold Member |
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Have you tried searching for 'ceramic wirewound resistors'?
I've seen a selection of non-inductive wirewound resistors over here in the UK, but I can't remember where... I was looking for some to use in a Zobel network. Metal Oxide resistors come in a non-inductive variety IIRC, but again, I'm not sure if you'll get one that's in the right value.
Early carbon comp resistors such as the old AB are non-inductive
You could email Mills and ask them (if they don't have the value, if someone else makes them, they might be able to steer you towards them): http://www.millsresistor.com/products.htm
You could also email / call Ohmite: http://www.ohmite.com/cgi-bin/products.cgi
I assume you've asked Oliver Archut? What does Klaus have to say?
Justin
Audio is a vocational affliction
"there is no "homeopathic" effect in bits and bytes." - HansP
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| Re: wire wound resistors? [message #332917 is a reply to message #332682 ] |
Sat, 12 April 2008 05:36 |
JGreenslade
Messages: 754
Registered: April 2004
Location: UK |
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Welwyn make several types that could fit the bill - check this example (it's non-inductive, goes to high values and appears to be relatively small - it came up when I specified WW, but doesn't mention WW in the PDF): http://www.welwyn-tt.com/pdf/datasheet/4500.PDF
Not that it'll carry currency here, but Welwyn are used in numerous pieces of high-end hi-fi.
They have many ranges that go into the 100 Meg region, and the Search engine's pretty good.
Parametric Search: http://www.welwyn-tt.co.uk/products/resistor-products.asp
Justin
Audio is a vocational affliction
"there is no "homeopathic" effect in bits and bytes." - HansP
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