[sdiy] Re: LDR decay time

[Paul Higgins]

Well, you _can_ make optocouplers yourself with a little heatshrink  
tubing and maybe some black paint, but they won't have the same  
consistent level of performance that you could get in the commercially  
made ones.  It depends what you're using them for.  I think for audio  
switches (as in Mesa/Boogie amps), you can be pretty sloppy with how  
well they're made.  For compressors, Mutron III clones, etc., you're  
going to be doing some precision matching, I'm sure.

-PRH

On Wednesday, April 28, 2004, at 04:01 PM, Metrophage wrote:

> Oh, shitty death! I thought it was odd that the US page for Hamamatsu
> was turning up blanks for their own product numbers!
>
> <
> http://www.hpk.co.jp/Eng/products/ssd/pdf/ 
> abolished_product_information/
> photocoupler_030901.pdf >
>
> I love it how products get "obselesced" despite the fact that there
> isn't anything else which performs the same function.


Paul Higgins
email: higg0008 at tc.umn.edu