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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Some\s+thoughts\s+on\s+a\s+transistorized\s+legal\s+limitamplifier\.\.\.\s*$/: 3 ]

Total 3 documents matching your query.

1. Re: [Amps] Some thoughts on a transistorized legal limitamplifier... (score: 1)
Author: ToddRoberts2001@aol.com
Date: Sat, 13 Oct 2007 13:29:37 EDT
Start with the 1500 watt peak output amplifier described in the old APT application note, APT9701, which posits 25¢/watt for a Class C amplifier section with 70% efficiency at 27 MHz (ISM band,
/archives//html/Amps/2007-10/msg00170.html (7,305 bytes)

2. Re: [Amps] Some thoughts on a transistorized legal limitamplifier... (score: 1)
Author: Steve Thompson <g8gsq@eltac.co.uk>
Date: Sat, 13 Oct 2007 19:46:41 +0100
I think you'd need a feedback system - polar or cartesian loop, for example. The AM/PM in the output stage will be severe, and probably beyond simple pre-correction in open loop. You can buy the who
/archives//html/Amps/2007-10/msg00171.html (7,810 bytes)

3. Re: [Amps] Some thoughts on a transistorized legal limitamplifier... (score: 1)
Author: Radio WC6W <wc6w_amps@yahoo.com>
Date: Sun, 14 Oct 2007 13:40:23 -0700 (PDT)
Combined replies to comments: you are going to use dissipate 150 watts in the heatsink vs 600? Hi Todd, Wellllll, to my limited understanding, Class E provides poor utilization of (expensive!) FET Dr
/archives//html/Amps/2007-10/msg00176.html (9,772 bytes)


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