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Sender: "piclist-bounces@mit.edu" Date: Mon, 13 Jul 2020 16:19:31 -0700 Subject: Re: [EE] Microwave Oven Transformers Thread-Topic: [EE] Microwave Oven Transformers Thread-Index: AdZZbXWnEoitIy1UQkiHSfkcVgdLVw== Message-ID: <81c2ffdfda6a3949c11c94384bf605c5.squirrel@mai.hallikainen.org> References: List-Help: List-Subscribe: , List-Unsubscribe: , In-Reply-To: Reply-To: Microcontroller discussion list - Public. Accept-Language: en-US X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Organization-AuthSource: TS500.efplus4.local X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-Exchange-Organization-SenderIdResult: Pass X-MS-Exchange-Organization-PRD: mit.edu X-MS-TNEF-Correlator: received-spf: Pass (protection.outlook.com: domain of mai.hallikainen.org designates 208.77.216.252 as permitted sender) receiver=protection.outlook.com; client-ip=208.77.216.252; helo=mailscanner.virtbiz.com; dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mitprod.onmicrosoft.com; s=selector2-mitprod-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=b3c98UYQdP3patAQ7pZaS4RcVEmv6BuSkoEx0+s7GHA=; b=ldIvUZcrsN6SFQi+tkXRL6roFrvkOqscx0Qq/fgPR3v+bsEAFZtGaSnjoTvtR9UBu9u5vUf4D5eHb3pHwFKcJQ/v90t3NqzcEjDBdbNH2kZU8gu2WG3QTEUTNfw3XBHD2E6aWFtH213daWmAJQFj6A581ORpiijxGpiEN+OB4bc= authentication-results: spf=pass (sender IP is 208.77.216.252) smtp.mailfrom=mai.hallikainen.org; mit.edu; dkim=none (message not signed) header.d=none;mit.edu; dmarc=permerror action=none header.from=mai.hallikainen.org; user-agent: SquirrelMail/1.4.22-5.el6 errors-to: piclist-bounces@mit.edu list-id: "Microcontroller discussion list - Public." list-post: x-beenthere: piclist@mit.edu x-mailman-version: 2.1.6 x-authentication-warning: mai.hallikainen.org: apache set sender to harold@mai.hallikainen.org using -f x-greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mailscanner.virtbiz.com [208.77.216.252]); Mon, 13 Jul 2020 18:19:34 -0500 (CDT) x-topics: [EE] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 We had a microwave oven with an interesting problem. When the timer timed out, the fan would stop, but the high voltage and RF would keep going. We finally smelled the transformer overheating. Luckily it would stop when you opened the door. I thought it would be an interesting to use it as the high voltage supply in an amateur radio RF power amplifier. It looks like the transformer is typically about 2.8 kV RMS. But, as stuff piled up in the garage, I eventually took it the the electronic recycler and bought an amplifier at a local hamfest ( https://w6iwi.org/DentronClippertonL/ ). Harold https://w6iwi.org --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .