not sure if you were installing radios in the 70's, but i think it was
either freightliner or peterbuilt that had reversed polarity as a standard
in their tractors for years.
 It kept repare shops in business for quite a while until someone had the
good sence to make the polarity and wiring scheme more standard.
Now they put in 22 dollar relays to save 30 sent parts in electronics in
most vehicles.
73
Colin, V A6BKX
----- Original Message ----- 
From: "Butch Bussen" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, October 03, 2008 9:39 AM
Subject: Re: correctly wiring power cable for TW1


>
> Speaking of smoke, I blew up a brand new cb radio once.  I sold radios and
> the local fire district wanted me to install a radio in their fire truck.
> Was an old military duce and a half.  I hooked up the radio and turned it
> on and the smoke roled!!!.  I grabbed my volt meter to check polarity.
> Polarity was right, but the thing ran on 24 volts.  That cost me a new
> radio and I found the batteries under the seat and hooked to 12 v.
> 73
> Butch Bussen
> wa0vjr
> open Node 3148
> Las Vegas
>
>
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