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KB2VXA > ALL 08.08.13 17:00l 19 Lines 609 Bytes #999 (0) @ WW
BID : 42327_VK6ZRT
Read: GUEST
Subj: Re: G7GVV > LEDs in parallel
Path: IZ3LSV<IW0QNL<JH4XSY<JE7YGF<VE3UIL<VK6ZRT
Sent: 130808/1537Z @:VK6ZRT.#BUN.#WA.AUS.OC #:42327 [Boyanup] $:42327_VK6ZRT
From: KB2VXA@VK6ZRT.#BUN.#WA.AUS.OC
To : ALL@WW
Hi Phill and all,
You can take a good guess at their maximum corrent rating by destructive
testing at least one. Just substitute a rheostat for the fixed ballast
resistor, lower the value until the LED pops and measure the value. Then use
a fixed resistor of a somewhat higher value and you're good to go.
As a QC inspector I used to run hydrostatic tests on pressure vessels. My
favorite was the burst test. (;->)
73 de Warren
Station powered by JCP&L atomic energy, operator powered by natural gas.
Message timed by NIST: 08-Aug-2013 at 15:35 GMT
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