In the late 70's I was in a Junior Achievement program sponsored by a couple of guys from HP optical (Page Mill); they took us on tours, told us lots of stories (some rather racy), and gave some of us who were interested lots of "samples" that were mostly seconds (wrong tints, poorly filled molds, loose specs, etc) from single LEDs to laser modules, but never any optocouplers.? When I asked for some, I was eventually given "real" samples because the "failure rate was so low".? At least on the types I was interested in.
-Dave
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On Monday, August 19, 2019, 02:33:24 PM PDT, Chuck Harris <cfharris@...> wrote:
Steve,
As a life long EE, I would not have put up with that for
a minute.? Either the circuit would get redesigned, or the
vendor of defective parts get banned.
But, I have always been a bit of a hard-ass about stuff like
that.
-Chuck Harris
Stephen Hanselman wrote:
Chuck,
He would change them 3 or 4 at a time. Now we see two or three over 5 or 6 units.? The 6130C uses 22 (or so) and the OEM HP ones were unstable.? HP got better, but at the time (1979) they broke at the drop of a hat.
Other folks, Monsanto, LiteOn, etc, all seemed more stable and reliable.
steve
