[sdiy] Re: Vactrol (opt align) VCF rev 2: help needed

[harrybissell]

The EL panel (in its day) would have had the fastest resopnse (compared
to neon or incandescent).  The LED should, in theory... win

One might make a large area LED array with a diffuser to make an even light
source... the 100,000 hour life would be attractive.

I thought the EL panel just went ober a single cell... are there MANY cells
there ???

(yeah, lazy @ss me, I bet the details are at your site :^)

H^) harry

jhaible at debitel.net wrote:

> > optical alignment isn't guaranteed... the LED might strike one half more
> > effectively.
>
> Good point, Harry, I didn't think about that!
> So mouting LDRs on EL panels may still have some advantage
> over LED/LDR vactrols even today!
>
> JH.
>
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