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From: Chris Wilson <dead.fets@gmail.com>
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To: Graham <rsgb_lf_group@blacksheep.org>
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Subject: Re: LF: Poor aerial connection affecting gate waveforms??
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Hello Graham,
15 April 2017
Just to be clear, this is just the original single amp that's been
fine now for ages, not two combined.... Not sure if people are
thinking this is part of my two amps via a combiner experiments, it's
not.
Best regards,
Chris 2E0ILY mailto:chris@gatesgarth.com
> Can only go by the images in the links I sent a while back .. I was
> wondering, after Andy's last post ,
> Why not simply build a copy of the Decca out put stage , series
> tuned cct's and the 3 -2-1 adding transformer
> there must be enough of them about, for the transformers and chokes to
> be identified , the same or similar must be about ..
> tried and tested configuration ?
> Taking everything , via the , what appears to be , a step up ,
> transformer , will provide isolation from the Ae , if you combine at
> 50 ohms , then everything will pass back to the amps , via the
> combiner ,
> Could be totally wrong of course, but there must of been a reason for
> the lay out , when other multi unit pa's used 50 ohm combining
> networks
> but its tried and tested and what's better than 2 500w power
> modules ? .. 3 of course ,)
> 73-G,
--
Best regards,
Chris mailto:dead_fets@gmail.com