[Elecraft] K144XV 2M Module and W2 Wattmeter on Web Order Form

w4sec at windstream.net w4sec at windstream.net
Thu May 28 10:17:42 EDT 2009


It is also pending the release  of a newer faster surface mount version of the Signetics Write-Only memory ICs (WOMs)- 
Here is a link to the data sheet pdf-
http://www.national.com/rap/files/datasheet.pdf
-Pete


Jack Smith
Wed, 27 May 2009 15:48:04 -0700

Lyle:

Does this mean I no longer need the Dewar of liquid helium for cooling?

Jack K8ZOA


Lyle Johnson wrote:
>> ...10 watt and 1200 watt K3s have a different rear panel plate.
>>     
>
> The 1200 watt hasn't been released yet.  We'll be using a single surface 
> mount 2N3906 PNP transistor in a Class I amplifier that will allow the 
> K3 to run on a single AA cell for up to 10 days, as long as the transmit 
> duty cycle significantly exceeds 101%.  Any less and the battery quickly 
> goes flat and the transistor lets its smoke out, which is a one time event.
>
> In the meantime, please use our 100 watt version with its corresponding 
> fan panel for your KPA3-equipped K3 and the K144XV.
>
> 73,
>

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