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[82.70.254.222]) by smtp.gmail.com with ESMTPSA id f196sm16837357wme.36.2019.02.26.03.18.37 (version=TLS1 cipher=AES128-SHA bits=128/128); Tue, 26 Feb 2019 03:18:38 -0800 (PST) Date: Tue, 26 Feb 2019 11:18:36 +0000 From: Chris Wilson X-Priority: 3 (Normal) Message-ID: <234098919.20190226111836@gmail.com> To: N1BUG In-Reply-To: <3062ef19-bb69-3187-e8db-6a6bf5050739@n1bug.com> References: <942860C848184BA2A0A9103E0EE56DF7@DELL4> <1UTEEgOcyQ.DAejAuRZtn9@optiplex980-pc> <92784b07-a799-fb4e-9080-e1e8bb167b75@n1bug.com> <1UTEEhG1Ft.EdI1dlVbFOZ@optiplex980-pc> <3062ef19-bb69-3187-e8db-6a6bf5050739@n1bug.com> 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 N1BUG, Just to add things were MUCH worst using a X2 multiplier circuit (Jay's). I now use an exciter frequency of X2 direct both from the U3S, and as of late X2 from the TS-590 into a simple squarer and use [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:32c listed in] [list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dead.fets[at]gmail.com) X-Scan-Signature: 086f3faad0220c9ae57a7913e711a86d Subject: Re: LF: Class D current spikes 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 N1BUG, Just to add things were MUCH worst using a X2 multiplier circuit (Jay's). I now use an exciter frequency of X2 direct both from the U3S, and as of late X2 from the TS-590 into a simple squarer and use WSPR in the "Advanced" X2 mode to correct the WSPR tones. No issues at all with either. OPERA is a no no as of this time, it is a FET killer :) Don't know why though. It would be great to get to the bottom of all this! Tuesday, February 26, 2019, 11:05:15 AM, you wrote: > Jay, > I was using an HF transceiver in CW mode through a down converter. > Other FETs were lost at end of envelope while running JT9 with the > transceiver in USB being fed audio from a sound card. The latest was > with audio from a different sound card into the new phasing exciter. > I have never lost a FET while running with the U3S. > 73, > Paul -- Best regards, Chris mailto:dead.fets@gmail.com