In sci.electronics.components Winfield Hill wrote:
Rolf_B wrote...
[1N4007] are available with a SOD-57 glass envelope, too (1N4007G?).
These are fairly well photoconductive.

While many companies* are making 1n4007G glass-passivated diodes,
it appears they all cover the glass with plastic. I wonder...
where one can get a 1n4007 with an all-glass package these days?

I've got a few 1N4003 and 1N4004 diodes with all-glass packages but I'm
not sure how recent they are. They have the (older?) Fairchild logo of
an italicized "F" with the middle stroke extending on both sides of the
vertical. I'm about 90% sure these came in one of those "20 rectifiers
for $2" packages from Rat Shock, so who knows how old they really are.
The bodies are about 2.5 mm diameter by 4 mm long. Inside the glass,
the ends near the leads are orange, with a clear strip less than 0.5 mm
wide near the middle.

Testing them with the "diode check" on a $40 multimeter and either a 40
watt clear globe lamp or a TV remote control doesn't show much
photoconductivity, but I suspect I would need to look a little harder
than this to see it.

Matt Roberds