Uranus phaser

[Martin Czech]

> - Typical CdS LDR's are most sensitive to green light, just like the
> human eye. Using a green LED, especially an ultra-bright green LED,
> will make the current used to drive the LED much lower. 
> 
??
I have seen sensitivity measurement diagrams that show two peaks of
equal hights for CdS:  at green 540nm AND orange/red 640nm. So these
very bright orange/red diodes should be sufficient, they are much
brighter then any green led I've ever seen, indeed one should not
directly look into the light source, danger of eye damage !


m.c.

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m.c. has made it finally:  3 CDs out now; 72 min. minimum; "1"
(1994-1995),"2" (95-96),"three" (96-97); experimental stuff; mostly
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