[Elecraft] K2

[Don Brown]

Hi

Use an Ohmmeter to check the resistance to ground on the collectors of the 
PA transistors. You may have a damaged insulator allowing the collector to 
short to the heatsink.

Don Brown

KD5NDB




----- Original Message ----- 
From: "Michael Pisani" <ssn700 at mac.com>
To: <elecraft at mailman.qth.net>
Sent: Friday, March 10, 2006 12:30 PM
Subject: [Elecraft] K2


> Howdy:
>
> Just commenced phase 3 transmitter test.  Results:  excessive current.
>
> Conditions:
>
> Using a 3 amp power supply.  Set K2 at 2 watts power out.  Cal current set 
> to 2 max.  Have analog watt meter connected to K2 and 50 ohm dummy load 
> connected to watt meter.
>
> When "Tune" mode activated, I get "high current on display" it reads 8.0 
> and my power supply ammeter pegs well over 3 amps and shuts down after 5 
> seconds.
>
> This will also happen when the front panel output control is set to one 
> watt.
>
> As careful and experienced as i think I may be, I certainly have a 
> problem.
>
> Any suggestions would be greatly appreciated.
>
> Thanks
>
>
>
>
>
> Michael J Pisani
> _______________________________________________
> Elecraft mailing list
> Post to: Elecraft at mailman.qth.net
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
>  http://mailman.qth.net/mailman/listinfo/elecraft
>
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com
>