[Collins] KWM-1 neutralization procedure

AI2Q ai2q at roadrunner.com
Sat May 21 13:16:25 EDT 2011


What is the best way to neutralize the (a) driver, (b) feedback trimmer, and 
(c) PA of my KWM-1?

My late model KWM-1 has a screen-off slide switch as well as an RCA phono 
socket on the chassis for the grid.

I am used to neutralizing by removing B+ from plates and screens, applying 
drive, and adjusting for minimum output on my scope placed across (a 50-ohm 
load) after peaking the pi-L network on the 6146s.

Any help or suggestions appreciated.

Vy 73, AI2Q, Alex
Member: ARRL, FOC, RSGB, CWops, QRP-L, Antique Wireless Association, Wide 
Area Amateur Radio Network
http://home.roadrunner.com/~alexmm 



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