[Elecraft] KPA500 installation on side?
Jack Brindle
jackbrindle at me.com
Mon Jul 9 14:59:37 EDT 2018
And you are right! When developing the KPA500, we went back and forth as to which was the best side, so my memory can be a bit fuzzy there. Mine had no handle or side feet for quite a while.
There is still significant heat production on the left side since the side panel is used as a heat sink for three (I believe) TO-220 regulators. I would still get that up off carpet so that at least some air can flow through to dissipate the heat.
73!
Jack, W6FB
> On Jul 9, 2018, at 11:41 AM, Michael Blake <k9jri at mac.com> wrote:
>
> Actually the feet are on the left side, not the right. They are on the same end that the transformer is on and would be in the perfect position to sit standing upright.
>
> Michael Blake
> k9jri at mac.com <mailto:k9jri at icloud.com>
>
>
>
>
>
>
>> On Jul 9, 2018, at 2:37 PM, hawley, charles j jr <c-hawley at illinois.edu <mailto:c-hawley at illinois.edu>> wrote:
>>
>> Possible to swap covers?
>>
>> Chuck Hawley
>> c-hawley at illinois.edu <mailto:c-hawley at illinois.edu>
>>
>> Amateur Radio, KE9UW
>> aka Jack, BMW Motorcycles
>> ________________________________________
>> From: elecraft-bounces at mailman.qth.net <mailto:elecraft-bounces at mailman.qth.net> [elecraft-bounces at mailman.qth.net <mailto:elecraft-bounces at mailman.qth.net>] on behalf of Jack Brindle via Elecraft [elecraft at mailman.qth.net <mailto:elecraft at mailman.qth.net>]
>> Sent: Sunday, July 08, 2018 10:49 PM
>> To: Jeff Blaine
>> Cc: elecraft at mailman.qth.net <mailto:elecraft at mailman.qth.net>
>> Subject: Re: [Elecraft] KPA500 installation on side?
>>
>> I know that there are feet are on the right side of the case, but if I were to place the KPA500 on its side, i think I would create a stand so that it can sit on the left side. Why?
>> The big weight (power toroid) is on the left side, while the heat generators (the PA transistors) are on the right. The center of gravity would be lower, cables would be down low (especially the power cable), and the fans up high.
>> The only heat generators on the left side are the power regulators (for +5 and +12V). They don’t generate nearly as much heat as the PA. The down side? The carry handle is on the left. That’s why a short cradle would be needed to lift the case above the handle extension.
>>
>> Just opinion, not an official recommendation. Mine sits nicely on its bottom feet with the KAT500 on top. That allows me to cable the two very nicely using custom cables.
>>
>> 73,
>> Jack, W6FB
>>
>>> On Jul 8, 2018, at 8:25 PM, Jeff Blaine <KeepWalking188 at ac0c.com <mailto:KeepWalking188 at ac0c.com>> wrote:
>>>
>>> To clarify - by "side" i mean the side that you would call the left or right side of the case - that is what i'm considering to have down. Not the face or back. Just rotating the amp 90 deg.
>>>
>>> 73/jeff/ac0c
>>> alpha-charlie-zero-charlie
>>> www.ac0c.com <http://www.ac0c.com/>
>>>
>>> On 08-Jul-18 6:22 PM, Dauer, Edward wrote:
>>>> Oops. My error. I read KPA1500, not 500. Wishful thinking on my part.
>>>>
>>>> Move to strike prior testimony.
>>>>
>>>> Ted , KN1CBR
>>>>
>>>>
>>>>
>>>> On 7/8/18, 5:16 PM, "Dauer, Edward" <edauer at law.du.edu> wrote:
>>>>
>>>> Just last week I sent the same question to Elecraft Support. The answer I got was yes, it can be, with two caveats. First, be sure to leave the 4 inches of free air clearance next to the top (top as in standard orientation), and don't set it so that the LEDs are on the floor. The orientation isn't odd, really. If it is resting on its right side the power switch will be on the rear, but very near the top edge. That's how mine will be, when it arrives this week --- I hope..
>>>> Ted, KN1CBR
>>>> ------------------------------
>>>> Message: 9
>>>> Date: Sun, 8 Jul 2018 10:56:03 -0700
>>>> From: Mark Goldberg <marklgoldberg at gmail.com>
>>>> To: Elecraft Mailing List <elecraft at mailman.qth.net>
>>>> Subject: [Elecraft] KPA500 installation on side?
>>>> Message-ID:
>>>> <CAKn+a3tL_r6RnRod1BSk-ET=_+R1i=SRGJCL-61e7Bw8RvAdTQ at mail.gmail.com>
>>>> Content-Type: text/plain; charset="UTF-8"
>>>> Can the KPA500 be installed on it's side? There are feet there. I want to
>>>> install it in an RV and there is more room for wiring and fan air movement
>>>> that way.
>>>> A search did not turn up any answers.
>>>> 73,
>>>> Mark
>>>> W7MLG
>>>>
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