[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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