At 23:50 13/11/2002 +0000, you wrote:
Hi all, Oh yes it does.....I've seen it and in fact we used to look at
silicon Planar (Fairchild TM, I think) emitter junctions for poor doping and
masking flaws using that in the early 1960s.
Dear Alan, LF Group,
I tried it with a 2N2222 - With a few mA B-E reverse current, I could see a
few tiny dots of light under x 60 magnification. With 100mA, these merged
into a continuous thin line of pinkish-white light in the gap between the
base and emitter metalisation, presumably coming from the junction itself.
With the high current, it was visible to the naked eye in a darkened room
as a tiny dot of light.
Cheers, Jim Moritz
73 de M0BMU
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