Return-Path: Received: (qmail 19544 invoked from network); 8 Jun 2000 09:24:39 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by bells.core.plus.net.uk with SMTP; 8 Jun 2000 09:24:39 -0000 Content-Transfer-Encoding: 8bit Received: from majordom by post.thorcom.com with local (Exim 3.02 #1) id 12zySJ-0003jA-00 for rsgb_lf_group-outgoing@blacksheep.org; Thu, 08 Jun 2000 10:18:27 +0100 Received: from ns1.swh.sk ([192.108.125.33]) by post.thorcom.com with esmtp (Exim 3.02 #1) id 12zySH-0003j2-00 for rsgb_lf_group@blacksheep.org; Thu, 08 Jun 2000 10:18:26 +0100 X-Priority: 3 X-MSMail-Priority: Normal Received: from hermes.swh.sk (hermes [195.41.64.129]) by ns1.swh.sk (8.9.1/8.9.1) with ESMTP id LAA19459 for ; Thu, 8 Jun 2000 11:18:15 +0200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from btss103a.swh.sk (btss103a.swh.sk [195.41.64.27]) by hermes.swh.sk (8.9.3/8.9.2) with ESMTP id LAA08105 for ; Thu, 8 Jun 2000 11:18:09 +0200 (MET DST) Received: by btss103a.swh.sk with Internet Mail Service (5.5.2448.0) id <2MGT088N>; Thu, 8 Jun 2000 11:18:06 +0200 Message-ID: <29BDD4F529FCD311B631009027357C4E85568B@btss103a.swh.sk> From: "Gasparik Richard" To: "Rsgb_Lf_Group \(E-mail\)" Subject: LF: LF PA with tube... Date: Thu, 8 Jun 2000 11:18:06 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2448.0) Content-Type: text/plain; charset=iso-8859-1; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Hi all... Anybody have an idea how to build an power amplifier with single tube ? I have some GU81's. They needs about Ua=2000 V and Ia(max)=600mA. I calculated Pi match, but values of capacitors are to high...anybody knows how to do it other way ? Thank you very much for all info... Rich OM2TW