[Elecraft] KPA 500 failure

Slava Baytalskiy slavka at nullserv.com
Sun Jun 8 10:22:54 EDT 2014


I also just finished my new KPA500 build. Not 15 minutes ago.
I didn't realize that the Fuse block is empty. Good thing i decided to actually double-check it before applying mains power.
I figured they'd put the fuses in based on the power cable i ordered (US version, 115 V).
Also, that whole business of selecting the right TAP (yellow is the default).

But after doing these checks the amp turned on ok and is showing 72.9 V when tapping HV button.
__________________
Slava (Sal) B, W2RMS
W2RMS at arrl.net

On Jun 8, 2014, at 9:40 AM, Jorge Mejia <laussana at me.com> wrote:

> Hello list members
> 
> I just finished putting together a KPA 500 which seems to be having problems. 
> When I turn  on and try to run the voltage test,  the “HV” button does not respond ….  the led’s bar graph indicate 100 W and I can’t turn it off from the front panel switch,  I have to use the one on the back, neither can I hear the fan discharging the caps. when switched off from the back. Has any of the list members experienced this situation? 
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