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[Amps] SSB transmitter rebuilt

To: <>
Subject: [Amps] SSB transmitter rebuilt
From: "Hsu" <>
Reply-to: Hsu <>
Date: Wed, 1 Aug 2007 22:03:15 +0800
List-post: <>
A Chinese ham rebuilt his 1.6KW SSB
 Final tube(FU-728) and socket,blower has been  he had to 
replace it to a 4-1000A(7F25B).   The right is Chinese 400W SSB transmitter,
Final is a pair FU-250F(4CX250FG).Two  transmitters was devoleped in early 
1960s, and similar Collins 618T or 618T+30S1.
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