The better news is that it worked in many thousands of amps built by
Rohde&Schwarz from about 1958 to 1990 for the military and other gouvernment
The early version was 500W AM/CW/FSK with a single QB5/1750, later 800W
AM/CW/FSK with the same tube, and then the version with the YL1050/RS1072C
built for any mode 1-30MHz and up to 1500W output 24/365.
The YL1050 operates at 3KV up to 1.4A.
From: email@example.com [mailto:firstname.lastname@example.org] On
Behalf Of Jim Brown
>Plate RF choke has an appreciable DC current component in it. This
>lowers the effective mu of the ferrite, and makes it less effective as
YES! The good news is that this can be predicted from mfr data sheets.
The bad news is that you probably won't like the prediction. More bad news
-- the DC will also cause heating, very possibly overheating.
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