[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! 

______________________________________________________________
Boatanchors mailing list
Home: http://mailman.qth.net/mailman/listinfo/boatanchors
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Boatanchors at mailman.qth.net

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html



More information about the Boatanchors mailing list