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[82.70.254.222]) by smtp.gmail.com with ESMTPSA id r29sm7047442wrr.45.2017.04.15.10.37.32 for (version=TLS1 cipher=AES128-SHA bits=128/128); Sat, 15 Apr 2017 10:37:32 -0700 (PDT) From: Chris Wilson X-Google-Original-From: Chris Wilson Date: Sat, 15 Apr 2017 18:37:31 +0100 X-Priority: 3 (Normal) Message-ID: <1654253493.20170415183731@gmail.com> To: Graham In-Reply-To: <77F04AF2145840F3A96644843D629A87@AGB> References: <272136023.20170415133220@gmail.com> <20623F28F103422F8F6F961B025E44C1@AGB> <448397363.20170415151022@gmail.com> <77F04AF2145840F3A96644843D629A87@AGB> MIME-Version: 1.0 X-Scan-Signature: 290c8768709872f914a4ca71ad6bfe49 Subject: Re: LF: Poor aerial connection affecting gate waveforms?? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-Scanned-By: MIMEDefang 2.75 Status: O X-Status: X-Keywords: X-UID: 11329 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