[Elecraft] K2/100 #4198 PA Stability Problem?

Vic Rosenthal [email protected]
Wed May 5 12:12:36 2004


Earl W Cunningham wrote:

> When driving an amplifier with the K2/100, the problem is even more
> severe because of the larger electromagnetic field generated by the amp's
> HV transformer while the amp is keyed.  In my case, even six feet of
> separation is not enough.  With the K2/100 spaced 30 feet from the amp,
> it is clean.

I have an Alpha 86 with a huge Hypersil transformer in it, and there's 
no problem with a separation of about 4 feet (1.2 m).  I did have 
problems with an antenna rotator control box which contains a much 
smaller transformer until I moved that about 18" (46 cm) away.

-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco