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[82.70.254.222]) by smtp.gmail.com with ESMTPSA id d10sm18512357wmh.15.2018.01.01.14.02.29 (version=TLS1 cipher=AES128-SHA bits=128/128); Mon, 01 Jan 2018 14:02:30 -0800 (PST) Date: Mon, 1 Jan 2018 22:02:28 +0000 From: Chris Wilson X-Priority: 3 (Normal) Message-ID: <170720643.20180101220228@gmail.com> To: Markus Vester CC: dead.fets@gmail.com In-Reply-To: <160b3a9c7d1-171c-1d653@webjas-vad221.srv.aolmail.net> References: <781825051.20180101212433@gmail.com> <160b3a9c7d1-171c-1d653@webjas-vad221.srv.aolmail.net> MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: Hello Markus, I am now using an MCP1404 so I can delete the 5V regulator http://www.gatesgarth.com/MCP1404.pdf [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dead.fets[at]gmail.com) 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: 086f3faad0220c9ae57a7913e711a86d Subject: Re: LF: Si5351A syntehsiser able to fire a FET driver chip directly?? Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=PRIORITY_NO_NAME autolearn=no version=2.63 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 Hello Markus, I am now using an MCP1404 so I can delete the 5V regulator http://www.gatesgarth.com/MCP1404.pdf So am I ok using another pair of 15K to pins 2 and 4 up to pins 6 (12V DC +)? Thanks, this is all rather academic, given the latest U3S firmware allows direct output of two signals from the Si synthesizer 180 degrees out of phase I just fancied seeing if I could reduce the component count of an amp. (Just fancied fiddling....probably not a good idea, but I need to learn ;)) Thanks Markus, happy New Year to you! Monday, January 1, 2018, 9:38:56 PM, you wrote: >> Any ideas please? > As Andy said, bias half way: place another pair of 15k from the inputs (Pins 12,10) to 5V (pin9). > 73, Markus -- Best regards, Chris mailto:dead.fets@gmail.com