[Elecraft] K2 in Overdrive Mode: 20 watts ?

Mon Apr 22 16:46:01 2002

Hi George,

Tnx for the comments. The final transistors specified up to 16 volts so it may be OK.

Let's hear from people who have actually tried operating in this mode and know how the rig behaves in this mode. How well or bad does it actually work @ 15 volts with the over-voltage ckt defeated???  (Please share the lectures if you have not tried it.)

Tnx again,
Jim
WA2UMP

In a message dated Mon, 22 Apr 2002 �4:14:11 PM Eastern Daylight Time, "George, W5YR" <[email protected]> writes:

>The issue is not that you enjoy life in the fast lane, but will your
>neighbors several KHz on either side of your signal enjoy the crap that you
>most likely will be radiating from operating the finals beyond their design
>limit. Power output is not the only performance spec of importance.
>
>73/72/oo, George W5YR - the Yellow Rose of Texas � � � � 
>Fairview, TX 30 mi NE of Dallas in Collin county EM13qe � 
>Amateur Radio W5YR, in the 56th year and it just keeps getting better!
>QRP-L 1373 NETXQRP 6 SOC 262 COG 8 FPQRP 404 TEN-X 11771 I-LINK 11735
>Icom IC-756PRO #02121 �Kachina 505 DSP �#91900556 �Icom IC-765 #02437
>
>
>[email protected] wrote:
>> 
>> It is my understanding that the K2 is capable of about 20 watts output on the lower bands if the power supply is run at 15 volts and the high voltage output protection
>> circuit is defeated.
>> 
>> Is anyone getting 20+ watts in this "over-drive" mode?
>> 
>> I realized that this is pushing the rig to the max but I enjoy "life in the fast lane".
>> 
>> If you're getting the 20 watts please share your experience.
>> - What power supply are you using and how much current does it pull?
>> - How hot does the final and drive get during transmission?
>> - Any problems?
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