Hi Peter
No it doesn't use any feedback. The schematics are in pdf form on the
website, just a tad out of date now that I've changed the pi tank.
73 Mark G4AXX
________________________________
From: G3rzp@aol.com [mailto:G3rzp@aol.com]
Sent: 03 May 2005 09:16
To: Mark Marsden; wlfuqu00@uky.edu; amps@contesting.com
Cc: g4axx@ntlworld.com
Subject: Re: [Amps] 4CX1000A for SSB??
In a message dated 03/05/2005 10:06:12 GMT Standard Time,
mm@plextek.co.uk writes:
I've remeasured the intermodulation characteristics of my
4CX1000A
amplifier
Do you use any negative feedback? It looks pretty good to me, but it
would be interesting to drop in a 4CX1500B, which is supposedly more
linear and see if you can tell the difference. I know, the problem is
getting one!
I presume there's tuner used on 80 and 160, which would push the
harmonics down further.
All in all, Mark, very interesting and useful information.
73
Peter G3RZP
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