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X-YMail-OSG: fJu1eAsVM1mrDcZfdQ3qM4JCYF.y4Ft8QjEMFWiJAcQYGHZ SW7KVi0O5GZfsF6XhLx8wZ5lxV2gCURNP4d42Nvv4vhOZk0V0irbI8HomWlL dOFDa65PBqzWCB3tcRTDqLqqC2qQS4cr6DYJOx5xTueQLaUTNIa6s4GkrINp cRSHPmMywV9i9srVDNjsrdUkO0suWvOvjb4GFSDInt_UAN0u44rkyFsE5s9z Bpcu.8HvUQtQIE03sjPsAVjS_6izBBExjdmAUAz8Phxn6.3WGy4gCGseDK30 hztI96UETrYN9PL7T7Wzhxl1iVoGZEqQ2onXZ0N5OqlME9pdtVG2kGhFZjAV RaDkReZ4NS2bXysJvAgN4zKkFcWJmQuodRqhjZFjBI.QxIeiDs8ShFMTsCs0 seonjAbO7_yV4HWjJu_bSTlafeUsgrutKMRnZUevw5xLoVbdKzbsd7zwveIi qbU_ZsWZDNZaQ7UpR.UUg2VkqL6PkJBDokLwO0Bpwu5v8FtnsFi5G5gFFsd3 oeRIEvrdO71kmIAGaj1VJIQrvGcmi9Zo5FMgQG4E4N79QAXrSJCM2XWphBrP jFOb0CPA19jpnwew- Received: from [88.151.27.235] by web112301.mail.gq1.yahoo.com via HTTP; Sat, 10 Mar 2012 02:50:22 PST X-Mailer: YahooMailWebService/0.8.116.338427 References: <4F5A7C02.2070306@iup.uni-heidelberg.de> Message-ID: <1331376622.92143.YahooMailNeo@web112301.mail.gq1.yahoo.com> Date: Sat, 10 Mar 2012 02:50:22 -0800 (PST) From: Tony Baldwin To: "rsgb_lf_group@blacksheep.org" In-Reply-To: <4F5A7C02.2070306@iup.uni-heidelberg.de> MIME-Version: 1.0 DomainKey-Status: good (testing) X-Spam-Score: 0.0 (/) X-Spam-Report: autolearn=disabled,HTML_MESSAGE=0.001 Subject: Re: LF: DK7FC LF PA schematics Content-Type: multipart/alternative; boundary="1908888046-355185953-1331376622=:92143" X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: * X-Spam-Status: No, hits=1.3 required=5.0 tests=FORGED_YAHOO_RCVD,HTML_30_40, HTML_MESSAGE,TO_ADDRESS_EQ_REAL 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 x-aol-global-disposition: G X-AOL-SCOLL-SCORE: 0:2:498016544:93952408 X-AOL-SCOLL-URL_COUNT: 0 X-AOL-SCOLL-AUTHENTICATION: mail_rly_antispam_dkim-d232.1 ; domain : yahoo.com DKIM : fail x-aol-sid: 3039ac1d40834f5b323d7cb4 X-AOL-IP: 195.171.43.25 X-AOL-SPF: domain : blacksheep.org SPF : none --1908888046-355185953-1331376622=:92143 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Thanks for the schematics Stefan.=0AI have them printed off for further rea= ding, and very pleased that you added "questions welcomed" :-)=0A73, Tony, = EI8JK=0A=0A=0A=0A>________________________________=0A> From: Stefan Sch=E4f= er =0A>To: rsgb_lf_group@blacksheep.= org =0A>Sent: Friday, 9 March 2012, 21:54:10=0A>Subject: LF: DK7FC LF PA sc= hematics=0A> =0A>LF,=0A>=0A>Now i've finally documented my complete LF PA i= n 2 documents, for those who are interested.=0A>=0A>The exciter: http://dl.= dropbox.com/u/19882028/LF/LF%20H%20bridge%20PA%20Exciter%2C%20DK7FC.jpg=0A>= The power part: http://dl.dropbox.com/u/19882028/LF/LF%20H%20bridge%20PA%2C= %20DK7FC.png=0A>=0A>Questions, hints and constructive advice is welcome.=0A= >=0A>BTW there are further components which complete the TX system here, li= ke a watchdog savety and PTT sequencer circuit, the IQ transmit converter, = temperature controlled fans, the automatic variometer. These do not necessa= rily belong to the PA and aren't shown here. A AM Modulator circuit which a= llows the PA to easy control the TX power and allows linear modes will be a= dded soon.=0A>=0A>73, Stefan/DK7FC=0A>=0A>=0A>=0A>=0A>=0A> --1908888046-355185953-1331376622=:92143 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Thanks for= the schematics Stefan.
I have them printed off for = further reading, and very pleased that you added "questions welcomed" :-)
73, Tony, EI8JK

From: Stefan Sch=E4fer <Stefan.Schaefer@iup.= uni-heidelberg.de>
To:<= /b> rsgb_lf_group@blacksheep.org
Sent: Friday, 9 March 2012, 21:54:10
Subject: LF: DK7FC LF PA schematics
=

LF,

Now i've finally documented my complete LF PA= in 2 documents, for those who are interested.

The exciter: http://dl.dropbox.com/u/19882028/LF/LF%20H%20= bridge%20PA%20Exciter%2C%20DK7FC.jpg
The power part: http://dl.dropbox.com/u/19882028/LF/LF%20H%20bridge%20PA%2C%20D= K7FC.png

Questions, hints and constructive advice is welcome.
BTW there are further components which complete the TX system here, li= ke a watchdog savety and PTT sequencer circuit, the IQ transmit converter, = temperature controlled fans, the automatic variometer. These do not necessa= rily belong to the PA and aren't shown here. A AM Modulator circuit which allow= s the PA to easy control the TX power and allows linear modes will be added= soon.

73, Stefan/DK7FC





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