Hi Buly,
I contacted the company I bought the boards from to check on a volume
purchase and they told me that they could supply more but the price
would be higher.  They said that the board I purchased was old stock
left over from a previous run.  It was a robotics supplier, but I

don't

recall the name, but I can look through my files to see if I can

locate

their url.  The "eye" of the unit is called a UVtron sensor.  I think

it

is manufactured by a Japanese firm.  Do a Google search for that and

see

what turns up.  The UVtron sensor is about $50 by itself.  I have it
hooked up to a big red LED at the top of my panel.  Hope I never see

it

lit up while I'm in the air.
Mark S

I found it. Here is screen shot.
  http://www.acroname.com/robotics/parts/R67-UVTRON.html
Paul Lamar

Thanks Mark,
The little metal housing box you were using, did you buy it at the
same place?
Buly


Buly,
No, that is a small project box available from any electronics supplier.
I bought it at Fry's Electronics.

Mark S.



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