Don Wilhelm wrote:
Here is what happened on C80 and C81 - for a short time after the 20 and 17
meter low power output problem, it was thought that the C80 and C81
capacitors had to be a higher value. Well as things turned out the problem
was really that the resistor manufacturer had changed R19 and R20 (1.6 ohms)
to an inductive design without notifying Elecraft.
How well I know this! Without going into detail, I have 5600 pf
capacitors installed. Is this a possible cause of instability on 21 MHz.?
I really don't want to take the board off the heatsink again unless I
know for sure that this is a likely cause of my problem.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
_______________________________________________
Elecraft mailing list
Post to: [email protected]
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