John,
If your fuseholders are of the 3AG type, consider replacing them with
the blade type fuseholders which have much better contact resistance
characteristics. The in-line 3AG fuseholders often do not have
sufficient pressure contact with the ends of the fuse for a good
connection. Poor connections to the fuse will cause the fuseholders to
heat and also cause extra voltage drops in the power cable.
73,
Don W3FPR
On 3/16/2015 4:12 PM, John, 9H5G wrote:
My K3 is powered from a car battery as I am always /P. I have installed
fast-blow fuses rated at 25 A in each of the supply lines.
Operating at 80W RTTY this afternoon, I noted that I was getting a low voltage
warning before I would have expected it. On examining the power cable, I found
the fuse holders to be warm to the touch. I expect that is what was causing the
voltage drop.
However, may I ask what specific (make , model) of fuse holders are you using
to protect your k3?
73
John, KK4OYJ
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