[Elecraft] K3 power supply fuses

[Don Wilhelm]

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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