[Elecraft] Power output

[Don Wilhelm]

Bob,

You should have at least 10 watts of power on 10 meters (assuming you are
feeding a 50 ohm non-reactive load - like a good dummy load or a properly
tuned antenna).

The low pass filters as well as T4 can reduce your power output.

Check T4 (and T3 too) for the correct number of turns.  Gary Surrency has
said that T4 works much better if the turns are interlaced rather than just
overlaid.  If you rewind T4, be certain to use teflon insulated wire.

Take a good look at your low pass filters - count the number of turns on the
toroids, re-check the capacitors for the proper value installed in the
correct holes, recheck the solder joints in that area.

73,
Don Wilhelm  - Wake Forest, NC   W3FPR home page: http://www.qsl.net/w3fpr/
  QRP-L # 485   K2  SN 0020   mailto: w3fpr@arrl.net

*** Life is what happens when you're making other plans -- Mike Cross  ***

----- Original Message -----
>
> Having just finished the first stage of K2 - #2642 and broken my first
pile
> up with it (OJ0) I am wondering about the output power I am getting.
>
> On CW I get 12 w on 80 falling to 8w on 10 with 13.5 volts on load ( Cur
> 3.0)
> I have rewound T2 as per other comments and tried  a new binocular core
but
> the results are about the same.
> I now have T2 vertical on the board at right angles to T3 as that gets it
> off the board surface.
>