To: | "'Tom Cathey'" <K1JJ@comcast.net>,"'Dave Calhoun'" <kb2ape@comcast.net>, <amps@contesting.com> |
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Subject: | Re: [Amps] Designing the Cleanest Linear with RF Negative Feedback |
From: | "Peter Voelpel" <df3kv@t-online.de> |
Date: | Sun, 18 Dec 2005 22:04:20 +0100 |
List-post: | <mailto:amps@contesting.com> |
Hi Tom, I put diagrams of the Harris linear and the Racal widebanddriver on the following website: http://www.pbase.com/df3kv/gallery/linear By the way, the TA1800 also uses 10db of negative feedback, but just to the driver stage, not to the pre-driver. All stages run class AB1, except the wideband-pre-amp which is class A. 25mW -> wideband pre-amp 250mW -> pre-driver 4CX350A 2.25W -> driver 2x4CX350A 113W -> 4CX10000D 10KW. The 4CX350A get their 1500V anode voltage from the screen-supply of the 4CX10K, clever! 73 Peter _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps |
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