[AT] OT--string trimmers

[Larry Goss]

Those symbols snuck in the back door when we weren't watching.  They got imported to us from other countries when electronics went global back prior to the 1970's.  They're actually the standard symbols used for logic and binary counting.  Rather than "O" and "-", they are "O" and "1" -- the symbols used for binary arithmetic.

I'd better stop before this discussion gets political.and/or controversial.

Larry


----- Original Message -----
From: Brian VanDragt <bvandragt at comcast.net>
Date: Tuesday, June 24, 2008 20:42
Subject: Re: [AT] OT--string trimmers
To: Antique tractor email discussion group <at at lists.antique-tractor.com>

> I don't know what the "-" and "o" are supposed to represent, but 
> I think of
> them as the "o" is open, as in an open electrical circuit (off), 
> and the "-"
> is closed, as in a closed electrical circuit (on).  Or on 
> your trimmers, the
> "-" could be an "i" for "ignition", and the "o" is for "off".
> 
> Brian
> 
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com]On Behalf Of Warren
> Sent: Tuesday, June 24, 2008 1:32 PM
> To: Antique tractor email discussion group
> Subject: Re: [AT] OT--string trimmers
> 
> 
> >
> > Oh I have one of those here.  That sort of memory, that is.
> > (The string trimmer here has one of those switches, too)
> >
> > Roy
> 
> Thankfully the new trimmer I bought is spring-loaded "normally 
> on". It's a
> good thing too because I never did, and still don't get the "-" 
> and "o"
> thing.
> 
> Warren
> 
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