Return-Path: Received: (qmail 29877 invoked from network); 14 Mar 2001 17:45:43 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 14 Mar 2001 17:45:43 -0000 Received: (qmail 3661 invoked from network); 14 Mar 2001 17:45:19 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 14 Mar 2001 17:45:19 -0000 Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 14dFDV-0004lU-00 for rsgb_lf_group-outgoing@blacksheep.org; Wed, 14 Mar 2001 17:37:45 +0000 Received: from mail2.svr.pol.co.uk ([195.92.193.210]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 14dFDS-0004lP-00 for rsgb_lf_group@blacksheep.org; Wed, 14 Mar 2001 17:37:42 +0000 Received: from modem-45.barium.dialup.pol.co.uk ([62.136.47.45] helo=robing) by mail2.svr.pol.co.uk with smtp (Exim 3.13 #0) id 14dFD6-0006GZ-00 for rsgb_lf_group@blacksheep.org; Wed, 14 Mar 2001 17:37:21 +0000 Message-ID: <000501c0acad$b595ffc0$2d2f883e@robing> From: "Robin T. Greenwood" To: rsgb_lf_group@blacksheep.org References: <16005567.984503931546.JavaMail.imail@chilly.excite.com> <004601c0ac7d$58993920$32d41ad4@w8k3f0> Subject: Re: LF: Re. E88cc in parallel Date: Wed, 14 Mar 2001 17:39:01 -0000 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: I think it was known as an EF54? ----- Original Message ----- From: "Dick Rollema" To: Sent: Wednesday, March 14, 2001 11:52 AM Subject: Re: LF: Re. E88cc in parallel > To All from PA0SE > > John, G4CNN wrote: > > That's my memory too - i.e. the red or aluminium cans were EF50s. Why some > were red I don't think I ever knew. > _______________________________________________________ > > Is it not so that the red EF50 was the original one, developed by Philips at > Eindhoven for television treceivers? Just before Germany occupied The > Netherlands on May 10th, 1940, info on the production of the EF50 was passed > to on Mullard. > > The aluminium military equivalent of the EF50 was the VR136, which was used > in for instance tuning units of the Gee set; one as RF amplifier, one as > a mixer and a VR137 triode as oscillator. > > 73, Dick, PA0SE > > > >