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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Re: Does 100 m of copper sound better than 1 m of nichrome? posted by andyr on August 8, 2005 at 18:24:03:
Very interesting experiment ... your solder-wire ICs.
Yeah, I went on to use it for speaker wires too. The geometry is nearly ideal, a hollow center filled with organic flux for damping and good high frequency current transmission, and a relatively inert high mass making it much less responsive to either internal or external forces. And super easy and cheap to make. I just get a roll of high lead content .062" solder and push it down some Teflon tubing and terminate each end with solder terminals and stress relief and put it to use. Works for me :)You mentioned "nichrome" - is that what the wire in "normal" (eg. Mills) ww resistors is made of?
That or some type like it. Nichrome is an alloy of about 80/20 nickel/chromium. There are other resistor wires but they're similar.Can you tell me which resistors you were referring to when you said "The low current precision wirewound resistors ... great sounding resistors"?
It's the RB series of mil-spec type resistors. Many companies make them including Mills, although I don't believe they offer as many types as some of the other companies. I've bought many on the surplus market, and bought many new from a few companies, but they are mostly like the ones shown here.I was thinking if one of these reses had to withstand, say, 20w continuous of power (when put in series with a Maggie panel), that's probably 1/2 an amp? 2 metres of 30awg mag-wire gives me 0.68 ohms (which is about what I want) so all I have to do is find out whether 30awg will take, say, an amp without glowing!!
Well, if you want to make it a 20 watt resitor then it will have to be able to handle a lot more than 1/2 amp! More like 5 amps at 1 ohm. 30 AWG could probably handle 1/2 to 1 amp if wrapped around a thermally conductive core, but not air or wood. And definitely not 5 A continuous. Are you just talking about high frequency panels? Wire charts usually include a column showing a conservative rating for current capacity in air.
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Follow Ups
- Re: Does 100 m of copper sound better than 1 m of nichrome? - Monkey Bones 19:19:02 08/08/05 (0)
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