RE:(Elecraft) Barebones K2 Amplifier

[Robert C.Abell]

Dave,
Stick to the KPA100 amplifier for your K2. I use one here and there is
no comparison with other amps.
The KPA100 is fully integrated with the K2 and is a real pleasure to
use. Trust me!
73, Bob VE3XM

K2/100  S/N  04031
K2  S/N  04575
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[Darrell Bellerive-2]

I have been following this thread with great interest.

I have a QRP K2 and would like to add an amplifier. I love the integration of
the KPA100 and KAT100 but would like more power and no fan.

I would like 400 watts output, QSK without relays and no fan.

The KPA800 seems interesting, but has features I don't need like SO2R and a
price tag that is too high for me. I hope that Elecraft is considering a
basic KPA400/KAT400 combination.

Could the fan in the KPA100 be eliminated with a different heat sink?

--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada

--
Darrell Bellerive
Amateur Radio Stations VA7TO and VE7CLA
Grand Forks, British Columbia, Canada
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[Don Ehrlich-2]

Many of us place a small muffin fan on top of the K2 heatsink.  I have my
muffin fan housed in a small plywood box (blowing down at the fins) with a
resistor in series with the fan so that it turns fairly slowly and makes no
noise at all.  With this auxillary cooling the noisy little fan in the 100W
amp almost never comes on.  I often run CW at 100 watts output and the
internal fan only comes on after an especially long transmission.

Don K7FJ


>
> Could the fan in the KPA100 be eliminated with a different heat sink?
>
> --
> Darrell Bellerive
> Amateur Radio Stations VA7TO and VE7CLA
> Grand Forks, British Columbia, Canada
>

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