Harold, I have'nt followed all of this thread but you might just use
a light bulb and a CdS cell. Jameco has several CdS cells. Try:

      http://www.jameco.com

   - Tom

At 01:03 PM 8/19/98 EDT, Harold Hallikainen wrote:
>On Wed, 19 Aug 1998 02:04:08 -0700 Mike Ghormley <mikeg@BLACKSAND.COM>
>writes:
>>Harold wrote:
>>
>>> Anyone know of an optocoupler with an incandescent lamp instead
>>> of an LED as the light generator?  There used to be a "Sigma
>>Datacel",
>>> but it appears it is no longer manufactured.
>>
>>EG&G Vactec have a whole spectrum of incandescent/CdS opto's in their
>>VTL3Axx line.
>>They even have a very simple RMS measurement circuit in the Typical
>>Applications section
>>of their Optoelectronics Data Book.
>>
>>They are at:
>>        http://www.egginc.com/bin/webmate/egg/page/egg/index
>>
>
>        I've had trouble getting data out of EG&G Vactec.  It took
>several tries to get the Optoelectronics databook.  I'd request it and
>they would send me their "short form catalog" which tells almost nothing
>about the products.  Now, I DO have the Optoelectronics Databook (dated
>November 1997).  It lists ONLY LED optocouplers (no incandescent).  Also,
>the part numbers are all VTL5..., no VTL3 series.  Checking the web site
>you gave, I again find VTL5's with LEDs.
>        Is the incandescent VTL3 a current product?  Do you have a full
>URL to a web page on this product?
>
>Thanks!!!
>
>Harold
>
>
>
>Harold Hallikainen
>harold@hallikainen.com
>Hallikainen & Friends, Inc.
>See the FCC Rules at http://hallikainen.com/FccRules and comments filed
>in LPFM proceeding at http://hallikainen.com/lpfm
>
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