From: firstname.lastname@example.org [mailto:email@example.com] On
Behalf Of Peter Voelpel
Sent: Thursday, March 06, 2008 1:03 PM
Subject: Re: [Amps] ferrite in RF chokes for PAs
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.
Hundreds, if not thousands of ferrite plate chokes have been used by Harris.
The one in my RF-110A goes 1.6-30 MHz, and loafs @ 2 Kw.
E-Mail me if you want a picture of it.
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