[Boatanchors] darn foreign schematic symbols
Greg Werstiuk
greg_werstiuk at msn.com
Wed Aug 12 03:36:44 EDT 2009
As far as I am aware, that symbol is specifically used for polarized
electrolytic capacitors. The plus sign polarity symbol should not be
missing.
Non-polar or bi-polar electrolytics are represented by a different symbol
which sort of shows the capacitor as two being in series.
Doesn't mean someone didn't get creative or this variation has been used
somewhere along the line to denote non-polar caps and I haven't seen it.
-
Greg
-----Original Message-----
From: boatanchors-bounces at mailman.qth.net
[mailto:boatanchors-bounces at mailman.qth.net] On Behalf Of Dick KF4NS
Sent: Friday, August 07, 2009 1:05 PM
To: boatanchors at mailman.qth.net
Subject: [Boatanchors] darn foreign schematic symbols
Hope someone can help. I have a schematic of a Japanese HT from the
early 80's or maybe late 70's with a symbol I hope I can describe
properly. Searches all over the Inet proved fruitless.
It is a pair of vertical dark lines with lighter slant bars between
the vertical bars. I of course suspect it is a condenser of some sort.
I went through all my dozens of tech books but only found something
close just once. It was described as a polarized capacitor but if so,
no way to determine the polarity. Weird !!
Any ideas?
73, Dick KF4NS
St Petersburg, FL 33714 USA
Keep The Glow!
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