Login  Register

K2 Early Ver. A Power out problem #2438

Posted by Jimithy66 on Jun 13, 2019; 7:33pm
URL: http://elecraft.85.s1.nabble.com/K2-Early-Ver-A-Power-out-problem-2438-tp7653063.html

I finished building a basic kit with no options and the power output will
not rise above 2 watts and current (2A) is too high for that power.
Hi Cur flashes briefly before power output settles at 2 watts.

Voltage checks found the PA base bias circuit putting out
1.4 VDC but  0.8 V is expected.

Two PN2222A transistors Q11 and Q13 make up
the bias circuit and wonder if anyone else remembers
seeing this problem, and what may have caused it  ?

 Thanks,

Jim / W1FMR
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[hidden email]

This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [hidden email]