Hi MIKE.

06-Nov-02 22:51:22, MIKE ROSS wrote to Roy J. Tellason


 MR> "Roy J. Tellason" wrote to "MIKE ROSS" (06 Nov
02  20:06:36) ---
 MR> on the topic of "BIRDBOX"

 RJT>> sometimes they'd get hot enough to burn ya!  So eventually I
 RJT>> found a PTC thermistor in my junk box and wired it into a probe
 RJT>> that'd fit my meter (dual banana plug & all).  And used _it_ to
 RJT>> check those chips first,  before I'd put my finger on them. Not
 RJT>> as elegant as an IR camera,  but one hell of a lot cheaper!
 RJT>> :-)

 MR> I think most electronic cameras are sensitive to IR to some
 MR> extent... (with the lights off of course) since to a CCD a photon
 MR> of any colour is still a photon. I think a cheap alternative may
 MR> be those simple camera modules used to wire into a circuit.

yeah, those B&W security camera modules work down into the IR and are
becomiung real cheap. they're easier to find than thermistors too, last
time I went to the local electronics store and purchased a single
thermistor I left with their entire stock :)

 -=> Bye <=-

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