Return-Path: Received: (qmail 8621 invoked from network); 18 Dec 2000 13:52:58 -0000 Received: from unknown (HELO murphys-inbound.servers.plus.net) (212.159.14.225) by extortion.plus.net with SMTP; 18 Dec 2000 13:52:58 -0000 Received: (qmail 2086 invoked from network); 18 Dec 2000 13:55:24 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys with SMTP; 18 Dec 2000 13:55:24 -0000 Content-Transfer-Encoding: 8bit Received: from majordom by post.thorcom.com with local (Exim 3.16 #1) id 1480cg-00033k-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 18 Dec 2000 13:46:38 +0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from bob.dera.gov.uk ([192.5.29.90]) by post.thorcom.com with esmtp (Exim 3.16 #1) id 1480cc-00033f-00 for rsgb_lf_group@blacksheep.org; Mon, 18 Dec 2000 13:46:34 +0000 Received: by bob.dera.gov.uk; (8.8.8/1.3/10May95) id NAA21586; Mon, 18 Dec 2000 13:46:36 GMT Received: (qmail 27646 invoked from network); 18 Dec 2000 14:41:06 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from gauntlet.mail.dera.gov.uk (172.16.9.10) by baton.dera.gov.uk with SMTP; 18 Dec 2000 14:41:06 -0000 Received: by gauntlet.mail.dera.gov.uk; id OAA17566; Mon, 18 Dec 2000 14:35:27 GMT Received: from unknown(10.71.64.31) by gauntlet.mail.dera.gov.uk via smap (3.2) id xma017506; Mon, 18 Dec 00 14:34:54 GMT Received: from frn-gold-1.dera.gov.uk (unverified) by mailguard.dera.gov.uk (Content Technologies SMTPRS 4.1.5) with ESMTP id for ; Mon, 18 Dec 2000 13:47:16 +0000 Received: by FRN-GOLD-1 with Internet Mail Service (5.0.1460.8) id ; Mon, 18 Dec 2000 13:45:25 -0000 Message-ID: <65AECDF1F89AD411900400508BFC869F0D749C@pdw-mail-1.dera.gov.uk> From: "Talbot Andrew" To: rsgb_lf_group@blacksheep.org Subject: LF: RE: FETs / Overload Protection Date: Mon, 18 Dec 2000 13:45:37 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.0.1460.8) 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: What's the Decca guard circuit ? - seems it may be what I'm looking for. Andy > > As far as short-circuit protection for Andy's amplifier goes, the > Decca "guard" circuit does this very nicely - when testing, I ran > mine into a dead short at full power for the best part of an hour > without it getting particularly hot. > -- The Information contained in this E-Mail and any subsequent correspondence is private and is intended solely for the intended recipient(s). For those other than the recipient any disclosure, copying, distribution, or any action taken or omitted to be taken in reliance on such information is prohibited and may be unlawful.