[Elecraft] The amp I would like to see Elecraft build.

[Lewis Phelps]

I picked up one of these things at a local surplus store.  Noisy as hell.  Not a good idea.

Lew N6LEW



> On Aug 1, 2016, at 7:35 PM, Gary K9GS <garyk9gs at wi.rr.com> wrote:
> 
> 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 <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-bounces at mailman.qth.net] On Behalf Of Dan Baker
>>> Sent: Sunday, July 31, 2016 5:31 PM
>>> To: elecraft at 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
> 
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Lew Phelps N6LEW
Pasadena, CA DM04wd
Elecraft K3-10 / KXV144 / XV432
Yaesu FT-7800 
Lew at N6LEW.US
www.n6lew.us

Generalized Law of Entropy: Sooner or later, everything that has been put together will fall apart.