[Elecraft] My poor K3

[Ronnie Hull]

Thanks Victor
Will check all that today when I get back home 
Ron W5SUM 

Sent from my iPhone

> On Feb 4, 2022, at 2:16 AM, Victor Rosenthal 4X6GP <k2vco.vic at gmail.com> wrote:
> 
> The guy who said to measure the voltage at the K3 gave you good advice. An easy way to do this is to tap the DISP button and turn the VFO B knob until it shows the voltage. Then see how much it drops during transmit. Since the K3 tries to produce the requested power with whatever voltage it gets, low voltage can cause excessive current draw. You should have at least 12v, preferably more than 13v when transmitting a steady carrier. If it drops more than half a volt when you transmit, there may be too much resistance somewhere in the connection to the power supply.
> 
> The other thing is that some combinations of resistance and reactance seen by the final amplifier produce higher current draw than others. Maybe you are seeing a combination of these effects.
> 
> 73,
> Victor, 4X6GP
> Rehovot, Israel
> Formerly K2VCO
> CWops no. 5
> http://www.qsl.net/k2vco/
>> On 03-Feb-2022 23:11, Ronnie Hull wrote:
>> I have had my K3 back to Elecraft repair TWICE in less than a year
>> Got it back finally yesterday and put it on the air this afternoon
>> Running 80w on CW on 20M and getting a high current alarm.
>> What the heck? Does it have to go back AGAIN?
>> Man I was close to pulling the trigger on a K4 but all thoughts out the window now
>> Anyone know what this might be? Using a 50Amp power supply
>> Ron W5SUM
>> Sent from my iPhone
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