-=> Jasen Betts said to Greg Mayman
 -=> about "IMAGE FILES" on 12-19-03  20:26.....

 JB> Or a triac driver like MOC2031, basically an optocooupler, but the
 JB> output stage is like a 400V/100mA triac (or silicon bilateral switch)

Some years ago (30 years?) I saw some optos with FETs in the
output that acted as opto controlled variable resistors and they
could be used for AC control.

According to the specs we should have been able to use them as
audio level controls, but we found they had a most peculiar type
of distortion at low levels.

From Greg Mayman, in beautiful Adelaide, South Australia
   "Queen City of The South"    34:55 S  138:36 E

... Chicken Little was right.
___ Blue Wave/386 v2.30

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