[Elecraft] K3 Suddenly died

[Scott Manthe]

I know this is the Internet and therefore anything goes, but on this 
list, can we at least make an attempt at being polite?

Scott, N9AA

On 10/7/13 2:04 AM, Jim Brown wrote:
> Nonsense alert!
>
> 73, Jim K9YC
>
> On 10/6/2013 10:22 PM, Richard Fjeld wrote:
>> When we think of wire gauge requirements for amperage needs, we need to
>> remember the amperage rating for wire is given for house voltage, 
>> typically
>> ~117 volts AC (in the US).  For lower voltage at 13.8 VDC, we need 
>> larger wire
>> size (smaller gauge number).  What often saves us is short lead lengths.
>> Still, if one measures the voltage drop of a conductor under load by 
>> using
>> a DMM with a test lead at each end of the wire, a drop will be seen 
>> if the
>> wire size is not adequate for the load.   (Emphasis on 'under load'.)
>>
>> The voltage drop across a resistance (in this case a conductor) is 
>> directly
>> proportional to the amount of current flow through the resistance.  
>> At idle
>> current, very little voltage drop will be measured in the resistance 
>> of the
>> conductor.
>>
>> The 12V jack on the back of the radio cannot be used to accurately 
>> measure
>> voltage drop in the power cable, but the voltage measured during 
>> key-down
>> will be approximately 1.4 volts less than the PS voltage if the cable 
>> is good.
>> An RCA plug can be wired to make the test connections safely. 
>