[sdiy] LED/LDR modules

danial stocks diode at hotmail.com
Tue Feb 13 17:06:16 CET 2001


I put then some shrink-wrap tube
>(it that the correct name for "Schrumpfschlauch" ?)

not too sure.. what's "Schrumpfschlauch" ? :0
normally called "heatshrink tube" here

>Worked OK, LDR resistance can be changed from near infinite
>to 2 KOhms (LED current varied from 0...20 mA)
>But it is slloooooooowwww...
>
most of the people who like ldr's I've spoken to like the slowness in them, 
it's part of the sound I spose.. generally they all will be pretty slow, 
nothing like close to OTA or other semiconductor device, but then they 
prolly have different speeds of LDR so maybe you could get a faster one..but 
it will prolly still be notably slow..
maybe the rate of change is proportional to the amt of instantaneous light 
change.. ie if you blast it with a huge amt of light it will get to a point 
much more quickly than with a lesser amt of light [so with the high light 
exposure, it obviously would be a point midway along somewhere, not the 
stable value for this light lvl].. if this is the case, you could cause a 
large light pulse to be pulsed when a change occours, speeding it up.. could 
work ok for interesting manipulation?


Cheers,
Dan
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