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#1
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On Oct 5, 2:31*am, Art Unwin wrote:
Antennas usually are made of aluminum as copper is somewhat heavier and silver and gold is to expensive. Since lead is now banned in a lot of places especially with solder you can now buy solder that is doped with Bismuth ! Now you can't coat your elements with it but *if you have a solder bath you can run copper wire thru it. The bismuth is brittle but with the underlying copper it is stiff enough to stick it on the antenna elements. I am assuming that the applied current would travel along the bismuth coating instead of the aluminum and therefore should increase gain for antennas that use coupling methods such as the Yagi tho bandwidth may well suffer some what. What do you think? testing, 1, 2, 3... can you hear me now?? |
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#2
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On Oct 8, 10:46*am, K1TTT wrote:
On Oct 5, 2:31*am, Art Unwin wrote: Antennas usually are made of aluminum as copper is somewhat heavier and silver and gold is to expensive. Since lead is now banned in a lot of places especially with solder you can now buy solder that is doped with Bismuth ! Now you can't coat your elements with it but *if you have a solder bath you can run copper wire thru it. The bismuth is brittle but with the underlying copper it is stiff enough to stick it on the antenna elements. I am assuming that the applied current would travel along the bismuth coating instead of the aluminum and therefore should increase gain for antennas that use coupling methods such as the Yagi tho bandwidth may well suffer some what. What do you think? testing, 1, 2, 3... can you hear me now?? i guess the logjam finally broke. google has been bouncing and queuing these up for days now! |
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#3
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testing, 1, 2, 3... can you hear me now??
Contact! -- @~@ Might, Courage, Vision, SINCERITY. / v \ Simplicity is Beauty! May the Force and Farce be with you! /( _ )\ (x86_64 Ubuntu 9.10) Linux 2.6.35.7 ^ ^ 22:13:01 up 10 days 23:30 2 users load average: 0.05 0.02 0.00 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_...sub_addressesa |
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