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
use.
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.
73
Peter
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com] 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
>a choke.
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.
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|