[Elecraft] KPA500 going into standby

[Milverton M. Swire via Elecraft]

>>> Current: 10 amps during tx  <<<
Find the reason why the Amp is only getting 10 Amps.
((((73)))) Milverton / W9MMS. 


      From: George via Elecraft <elecraft at mailman.qth.net>
 To: elecraft at mailman.qth.net 
 Sent: Monday, April 27, 2015 3:41 PM
 Subject: [Elecraft] KPA500 going into standby
   
In working the FQP this weekend, my KPA500 went into Standby on its own a  
few times when it was transmitting.  I believe it only happened when I was  
on 10m.  
 
Here were the conditions:
Transceiver: TS480
Power: appx 400 watts
Temp: 54C
Current: 10 amps during tx
 
HV: 61 Volts
VSWR: 1.4:1
Antenna: 10m monoband yagi
 
What would be a likely cause for this?
 
73, George, K5KG
 
George  Wagner, K5KG
Sarasota, FL  34242
941-400-1960
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