Couldn't find my slipstick but cipherin' it on paper gave the following
values:
Current for full dissipation (50 w) = 18.26 Amps
Voltage drop @ 18.26 Amps across 0.150 Ohms = 2.74 Volts
This causes me to wonder if a properly rated fuse wouldn't work as well --
perhaps a 15 Amp 3AG fuse?
73, Mike N4NT
----- Original Message -----
From: "Harry Coates" <wa8hc1@charter.net>
To: <tentec@contesting.com>
Sent: Monday, June 08, 2009 11:37 AM
Subject: [TenTec] Kinda OT
Hello to all, This is kinda off topic.. I'll put it on topic.. I use my
Pegasus for portable operation when camping..
I use the internal 12v system in the camper from the battery side for a
power supply.. The battery charging part of the converter quite working..
I found the problem, the big ballast resistor went open.. It's one of
those big white ceramic 50w .150 ohm units..
You just can't find those thing at the corner store..
Why do these manufacturers choose them?? Something I don't know?? I can
get a 50w 1 ohm
old brown wire wound one.. That should work..
Camping season is upon us up here!!
(TEN TEC FOREVER AND RTTY TOO)
Harry
WA8HC@ arrl.net
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