piclist 2001\01\02\065324a >
Thread: Sound Detector
face BY : Michael Rigby-Jones email (remove spam text)

> -----Original Message-----
> From: James Burkart [SMTP:KILLspamgrafxjkbspam_OUTspamPACBELL.NET]
> Sent: Wednesday, December 27, 2000 8:38 AM
> Subject:      Re: [OT] Sound Detector
>    Well, If you use something like a super-bright blue or white LED the
> spectrum they emit is very narrow, no IR. But I really don't think that
> they
> are bright enough.
Surely a white LED, by definition, does not have a narrow specturm?


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