[Elecraft] KPA500 failure

[Jack Brindle]

Don;

Does the High Voltage look about right on the display? Do you still get the asterisk on the display when you key down?

Give tech support a call in the morning. They will be best equipped to help you at this point.

73,
Jack, W6FB

> On May 12, 2019, at 6:54 PM, Don Roberts via Elecraft <elecraft at mailman.qth.net> wrote:
> 
> While getting ready for the Elecraft net today my KPA500 would not transmit. In bypass mode swr is 1:1. When placing in operate mode I get no output with my K3 showing high swr. Tried my loop,  vertical, and Hex beam. All show low swr on the K3, KAT500 and the KPA500 in bypass. 
> I took the KAT out of circuit and no change. Unhooked all antennas and then reattached one at a time, no joy. Ran a new coax between K3, KPA500, and then just between the K3 and KPA500 and got the same thing.
> Can run 100 watts out with K3 with low swr on all my hf antennas as long as KPA500 is bypassed. When I put it in operate I get no output and K3 shows high swr. It has been working flawless on all bands and modes. Usually run 28 to 32 watts input for around 500 out. 
> Anyone have any ideas on what might have happened. Thanks for any thoughts..
> 73, 
> Don, W4CBS 
> Sent from Yahoo Mail on Android
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