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echo: ham-sale
to: JOHN JEWKES
from: IVY IVERSON
date: 1997-08-04 23:45:00
subject: 440 HT...Reply

-=> On 08-03-97  10:17, John Jewkes said to Ivy Iverson, <=-
-=> About 440 HT...Reply,..." <=-
 
 JJ> Hi Ivy, 
 
Hi, John;
 
 JJ> I dont have any further Info. The Charger was working fine,
 JJ> and then a  diode was literally cooked in half. Then The XFMR started
 JJ> getting hot.
 
Careful visual inspection revealed nothing cooked in there, and all
diodes checked good with ohmmeter, so I replaced the xfmr, (which was
getting quite hot in a couple of minutes of what appeared to be normal
operation), and plugged it in.  Since everything appeared normal and 
diodes checked ok, I was hoping that the (current) problem was shorted 
turns in the xfmr... WRONG GUESS!   :-<
The rest of the story was in the msg I sent you.  (1/2 A SB fuse never 
blew!)   :-<
 
 JJ> Should  be a 12 volt output, as the batteries are 12
 JJ> volts, I thought.
 
Actually, according to the label on the bottom, it's rated output is
17.5 volts.  (The origional xfmr & the one I replaced it with are
25 Volts).  The replacement came from Radio Stuff - 12.3-0-12.3 V @
2 Amps... BARELY fit physically!  The batteries are labeled 12.5 V.
Remember, like a car battery, you have to raise the input voltage above 
the battery's voltage to charge it.   :-}
 
 JJ> I know the Local Motorola Shop has the Manuals, but
 JJ> they won't share with me, but will Sell them for about $20.00 .
 
RATZ!  Sorry, I can't handle another $20 right now.  Maybe I can
wangle some info around here.
 
Many thanks es 73 DE KB9QPM
   Ivy
 
 
 
... I haven't lost my mind... it's on tape around here somewhere.
 
... Support International BBS week - Peek in INTBBS_WK for details!
 
             /-----------Ivy Iverson - KB9QPM ----------\
            {  North Amereican Co-Moderator, INTBBS_WK   }
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