Couldn't find my slipstick but cipherin' it on paper gave the following
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" <email@example.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)
> WA8HC@ arrl.net
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