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Author Topic: Elecraft KPA500  (Read 1644 times)
WA4RTE
Member

Posts: 20




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« on: March 28, 2019, 10:19:02 AM »

I just finished assembling a KPA500 kit.  During assembly, I cross-threaded one of the fasteners.

Cody at Elecraft send me new fasteners and screws right away, at no charge.  This is excellent customer service - thanks!

Joe  WA4RTE
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K6BRN
Member

Posts: 1354




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« Reply #1 on: March 28, 2019, 11:06:11 PM »

And the KPA-500 is a great amp.  Runs off of 120VAC with no problem.  Tiny, reliable, easy to build and very conservatively rated.  Built a KPA-500/KAT-500 (tuner) combo two years ago.  The pair works seamlessly with my Yaesu FT-991 and FTDX-3000s, following rapid frequency/band changes without a hiccough and requiring only 10-20 watts of drive.  "No tune".  Handles high duty cycle modes like RTTY, FT8 and others with ease, even at full rated output.

Curiously, the KAT-500 seemed to have many more loose parts to put together and took longer to build.

Brian - K6BRN
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N9AOP
Member

Posts: 1174




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« Reply #2 on: March 29, 2019, 08:18:16 AM »

Nice thing about the KPA500 is the conventional transformer.  No switcher to go ballistic is there is a large phase change on your service drop.
Art
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DL8OV
Member

Posts: 1059




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« Reply #3 on: March 31, 2019, 07:41:00 AM »

Elecraft - Nice people to do business with.

Peter DL8OV
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W9DDK
Member

Posts: 5




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« Reply #4 on: June 17, 2019, 02:16:45 PM »

I just put together the kpa500 and kat 500. Was missing one stand off and Elecraft sent it out fast. No issues assembling them.

 Hook them up to my Yeasu ft 950 and they work seamlessly together. Putting out 500 watts with 30 watts from transceiver.

I have a 4bvt vertical (10-15-20-40) but this tunes everything from 6 to 80 on the kat500.

Really like the pair together.
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N8FNR
Member

Posts: 309




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« Reply #5 on: June 17, 2019, 04:09:36 PM »

I just put together the kpa500 and kat 500. Was missing one stand off and Elecraft sent it out fast. No issues assembling them.

 Hook them up to my Yeasu ft 950 and they work seamlessly together. Putting out 500 watts with 30 watts from transceiver.

I have a 4bvt vertical (10-15-20-40) but this tunes everything from 6 to 80 on the kat500.

Really like the pair together.

My KPA500 and my Flex-6400 are a perfect match for me. They work seamlessly together along with my SteppIR BigIR vertical.

Zack N8FNR
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