FS: K3 Options

[dwines]

Since I have recently upgraded some of the options on my K3, I have for
sale the following:

     KBPF3, Rev. A, General Coverage RX Bandpass Module, $75
     Includes all mounting hardware.

     KXV3-2, Rev. A, RX Ant., IF Out and Xverter Interface  $75
     Includes Tmp cable, all mounting hardware and rear panel plate.

     PR-6, 6m Preamp, Board marked 2008    $75
     Includes 2-BNC M/M adapters, and original power/control cable.
     (Does not include "Y" cables)
     (Requires KXV3 interface)

Any 2 for $125
All 3 for $175

All prices include shipping via USPS.
Manuals and installation instructions are available on Elecraft's web site.

Please reply off-list to dwines at suddenlink dot net.

Thanks for the BW.

Don,
K5DW
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[HP]

Since we are in monsoon season here in AZ - if any storm is in area or
predicted - I  disconnect everything - both at tower and at shack wall.

I noticed this morning that when I plug the KPA500 back in -(its on a 240
circuit all by itself)  I hear what appears to be an initial  transformer
magnetizing input hum even though the ON switch is OFF .

All seems to be working fine - going  from ON to OFF the fan runs to bleed
down the PS and amp works  OK - I just never noticed this hum before .And
the hum is just at the initial  plug in - it does out to inaudible.

It appears even when the KPA500 is "OFF"  the transformers are still being
fed from AC line  - TRUE ????

Sheet 1 of 2 of the PS shows a "switch" right at input but that appears to
be part of the input 120/240  module , KPA500 Front Panel Switches shows the
"ON-OFF" sw just as a closure to ground feeding control logic at which point
I get crosseyed.

Hank K7HP

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[dwines]

The PR-6 and KBPF3 have been spoken for pending funds.

KXV3 is still available.

Don
K5DW

On 08/01/2015 01:11 PM, Don Wines wrote:

> Since I have recently upgraded some of the options on my K3, I have
> for sale the following:
>
>     KBPF3, Rev. A, General Coverage RX Bandpass Module, $75
>     Includes all mounting hardware.
>
>     KXV3-2, Rev. A, RX Ant., IF Out and Xverter Interface  $75
>     Includes Tmp cable, all mounting hardware and rear panel plate.
>
>     PR-6, 6m Preamp, Board marked 2008    $75
>     Includes 2-BNC M/M adapters, and original power/control cable.
>     (Does not include "Y" cables)
>     (Requires KXV3 interface)
>
> Any 2 for $125
> All 3 for $175
>
> All prices include shipping via USPS.
> Manuals and installation instructions are available on Elecraft's web
> site.
>
> Please reply off-list to dwines at suddenlink dot net.
>
> Thanks for the BW.
>
> Don,
> K5DW
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to [hidden email]
>

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[HP]

Face is red - Issue resolved - senior moment - yep the transformers are
energized anytime its plugged in and the
"ON-OFF" switch on the input voltage /fusing module is "ON". Been so long
since I looked at back of amp
after I finished it and hooked it up , I forgot that was a real switch. Nice
to have gear so trouble free you
forget what the back looks like !!!! Some part of the PS HAS to be on for
voltage for the logic.

Thanks to all who responded

Hank K7HP

-----Original Message-----
From: Hank P
Sent: Saturday, August 01, 2015 12:49 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] KPA500 power supply

Since we are in monsoon season here in AZ - if any storm is in area or
predicted - I  disconnect everything - both at tower and at shack wall.

I noticed this morning that when I plug the KPA500 back in -(its on a 240
circuit all by itself)  I hear what appears to be an initial  transformer
magnetizing input hum even though the ON switch is OFF .

All seems to be working fine - going  from ON to OFF the fan runs to bleed
down the PS and amp works  OK - I just never noticed this hum before .And
the hum is just at the initial  plug in - it does out to inaudible.

It appears even when the KPA500 is "OFF"  the transformers are still being
fed from AC line  - TRUE ????

Sheet 1 of 2 of the PS shows a "switch" right at input but that appears to
be part of the input 120/240  module , KPA500 Front Panel Switches shows the
"ON-OFF" sw just as a closure to ground feeding control logic at which point
I get crosseyed.

Hank K7HP

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