[Elecraft] W1/K2 Question

[Tom McCulloch]

Hi gang,
   I have a W1 watt meter, which I probably purchased just before the W2 
was released, and I'm finally fed up with changing the 9 volt battery 
every time I forget to turn the W1 off.  So I'm thinking of pulling the 
voltage from my K2 to power the W1.

In the back of my mind I'm remembering a thread from a good number of 
years ago which advised "Don't pull any voltage from the K2 for external 
uses".  Does anyone know if it would be OK to take 9 to 13 volts from 
the K2 to power my W1 (which really doesn't draw much current).  If so, 
has any one tapped into the K2 to set up a voltage out jack?  I'd be 
interested in knowing where you took the voltage. I'm looking at P3 or 
perhaps F1 (I have the the battery installed in the K2).

OK and thanks for any help you may provide.

Tom, WB2QDG
K2 #1103