Or better yet, do what other SS amp manufacturer's are doing, use
surplus HP Proliant server power supplies? Here's a 3KW one/50V for
$30.00. There are warehouses full of these things available.
http://www.ebay.com/itm/HP-ESP120-2950W-Power-Supply-226519-501-406424-001-253232-001/391114939625?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D37577%26meid%3D7a666926576944989b8c1bc8c2e7ec53%26pid%3D100005%26rk%3D1%26rkt%3D6%26sd%3D122038440431
They have other current capacities available. These can be run in
series or parallel too.
Sure beats re-inventing the wheel.
On 8/1/2016 1:04 AM, Bob Nielsen wrote:
Although it would add to the cost, building in a 12 to 60 volt DC-DC
converter would avoid compromising the performance.
73, Bob N7XY
On 7/31/16 7:15 PM, Ron D'Eau Claire wrote:
Dan, the issue is producing more than 100 watts from a 12-volt supply
without unacceptable levels of IMD. That's why Elecraft used a
60-volt power supply in the KPA500.
If the gain restrictions are removed, Elecraft (and anyone else)
could produce a 500 watt amplifier that worked from an exciter with
any level of drive, even less than 1 watt.
73, Ron AC7AC
-----Original Message-----
From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of
Dan Baker
Sent: Sunday, July 31, 2016 5:31 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] The amp I would like to see Elecraft build.
Once the FCC removes the 15 dB gain limitation on amateur amplifiers
*Petition for Rule Making* (*RM-11767*
<http://apps.fcc.gov/ecfs/comment/view?id=60001536394>) Then Elecraft
can build us a 12 volt version of the KPA500. That would give us the
ability to run our KX’s as a very effective mobile rig. This would
compliment Elecrafts theme of products much more than a legal limit
amp, that really you can find anywhere.
73, Dan KM6CQ
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73,
Gary K9GS
Greater Milwaukee DX Association: http://www.gmdxa.org
Society of Midwest Contesters: http://www.w9smc.com
CW Ops #1032 http://www.cwops.org
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