From: elecraft-boun...@mailman.qth.net On
Behalf Of Don Butler
Sent: Saturday, 2 June 2018 2:01 PM
To: 'Richard Thorne' ; Elecraft@mailman.qth.net
Subject: [Elecraft] KPA1500 Fan Noise Video posted
In response to N5ZC’s request I just made this short video to provide a listen
to the KPA1500
So far for the short time I've had the 1500, I've used it very heavily in WPX
CW recently. At constant running , sometimes getting no answers which is
probably max duty cyclefor this kind of operating, I never went over about 74
degrees C which kicks in fan speed 3 (I think, hi, I had it
> Sent from Mail for Windows 10
>
> From: Paul Baldock
> Sent: Saturday, June 2, 2018 8:38 AM
> To: Don Butler; Elecraft@mailman.qth.net
> Subject: Re: [Elecraft] KPA1500 Fan Noise Video posted
>
> Does the power supply make any significant noise?
>
> - Paul
>
&g
right at the end you
can hear when the PS fans stop.
Don, N5LZ
Sent from Mail for Windows 10
From: Paul Baldock
Sent: Saturday, June 2, 2018 8:38 AM
To: Don Butler; Elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA1500 Fan Noise Video posted
Does the power supply make any significant noise
Does the power supply make any significant noise?
- Paul
At 11:01 PM 6/1/2018, Don Butler wrote:
In response to N5ZCâs request I just made
this short video to provide a listen to the
KPA1500's fans ... at least as they sound in my
shack. Follow this link to view:
...@mailman.qth.net] On Behalf Of Don Butler
Sent: Saturday, June 02, 2018 2:01 AM
To: 'Richard Thorne' ; Elecraft@mailman.qth.net
Subject: [Elecraft] KPA1500 Fan Noise Video posted
In response to N5ZC’s request I just made this short video to provide a listen
to the KPA1500's fans ... at least
Nice video Don. Speed 4 and 5 might be like trying to operate with the XYL
vacuuming around you. I wonder what duty cycle and power level it takes
for these speeds to kick in. It was good to see a comparison with the tube
amps. My Alphas were hardly noticeable when running but remember they are
The Valve amps do not require such cooling. 73 Doug EI2CN
Sent from my Samsung Galaxy smartphone.
Original message From: Don Butler Date:
02/06/2018 08:01 (GMT+01:00) To: 'Richard Thorne' ,
Elecraft@mailman.qth.net Subject: [Elecraft] KPA1500 Fan Noise Video posted
In response to N5ZC’s request I just made this short video to provide a listen
to the KPA1500's fans ... at least as they sound in my shack. Follow this link
to view: https://vimeo.com/273064144
In addition to the KPA1500 the video also includes footage of my Alpha 9500 and
Icom PA1 … each
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