27 Sep
2015
27 Sep
'15
12:15 p.m.
On 09/27/2015 11:03 AM, Noel Chiappa wrote:
Hey, everyone: those little glass capacitors (well,
the casing is
glass - I'm not sure what's inside) that one often sees used as
per-chip noise/spike supression caps (often 0.01 uF or some such
size) on 1970s/1980s vintage boards: are those things polarized, or
can I put them in either way around?
Are you certain that the encapsulation is glass and not resin? I've got
a tub full of those paper-and-oil caps encapsulated in clear (like
water) resin, ranging in value from 100 pf to about 2.2 uF.
I know that some old Sprague "Vitamin Q" steel-jacketed caps were sealed
with what looks like glass, but again, I suspect that it's just resin.
(BTW, when those things go, it's explosive with the added shrapnel of
the jacket. Nasty).
--Chuck