Received: from PCH.mit.edu (18.7.21.50) by mail.efplus.com (192.168.0.8) with Microsoft SMTP Server (TLS) id 8.3.485.1; Fri, 13 Nov 2020 13:22:30 -0800 Received: from PCH.MIT.EDU (localhost.localdomain [127.0.0.1]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 0ADLD1vU016166; Fri, 13 Nov 2020 16:13:34 -0500 Received: from outgoing-exchange-5.mit.edu (OUTGOING-EXCHANGE-5.MIT.EDU [18.9.28.59]) by PCH.mit.edu (8.14.7/8.12.8) with ESMTP id 0ADL9LvX015433 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 13 Nov 2020 16:09:21 -0500 Received: from w92exedge4.exchange.mit.edu (W92EXEDGE4.EXCHANGE.MIT.EDU [18.7.73.16]) by outgoing-exchange-5.mit.edu (8.14.7/8.12.4) with ESMTP id 0ADL94eJ032125 for ; Fri, 13 Nov 2020 16:09:21 -0500 Received: from w92expo14.exchange.mit.edu (18.7.74.68) by w92exedge4.exchange.mit.edu (18.7.73.16) with Microsoft SMTP Server (TLS) id 15.0.1293.2; Fri, 13 Nov 2020 16:09:11 -0500 Received: from oc11exhyb3.exchange.mit.edu (18.9.1.99) by w92expo14.exchange.mit.edu (18.7.74.68) with Microsoft SMTP Server (TLS) id 15.0.1365.1; Fri, 13 Nov 2020 16:09:16 -0500 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (104.47.55.105) by oc11exhyb3.exchange.mit.edu (18.9.1.99) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Fri, 13 Nov 2020 16:09:16 -0500 Received: from MWHPR2001CA0017.namprd20.prod.outlook.com (2603:10b6:301:15::27) by DM6PR01MB5644.prod.exchangelabs.com (2603:10b6:5:1c9::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3541.25; Fri, 13 Nov 2020 21:09:14 +0000 Received: from CO1NAM11FT061.eop-nam11.prod.protection.outlook.com (2603:10b6:301:15:cafe::6a) by MWHPR2001CA0017.outlook.office365.com (2603:10b6:301:15::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3564.25 via Frontend Transport; Fri, 13 Nov 2020 21:09:14 +0000 Received: from p3plwbeout27-03.prod.phx3.secureserver.net (216.69.139.50) by CO1NAM11FT061.mail.protection.outlook.com (10.13.175.200) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3541.22 via Frontend Transport; Fri, 13 Nov 2020 21:09:14 +0000 Received: from p3plgemwbe27-03.prod.phx3.secureserver.net ([10.36.136.33]) by :WBEOUT: with SMTP id dgJHkYFrgXhAodgJHkOHa0; Fri, 13 Nov 2020 14:08:43 -0700 Received: (qmail 59631 invoked by uid 99); 13 Nov 2020 21:08:43 -0000 From: Jim To: Microcontroller Public Sender: "piclist-bounces@mit.edu" Date: Fri, 13 Nov 2020 13:08:42 -0800 Subject: [EE]: Beckman DMM Question Thread-Topic: [EE]: Beckman DMM Question Thread-Index: Ada6Axg0PlBA4um0TfurfumyFPjhwA== Message-ID: <20201113140842.06a56fd6300ec2bfca6379d4e10ab8d2.6f6408e307.wbe@email27.godaddy.com> List-Help: List-Subscribe: , List-Unsubscribe: , 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: None (protection.outlook.com: jpes.com does not designate permitted sender hosts) 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=zupF1ILU/On7YHzJuAWlBR0/1UwbcuGYJD3fYD9poJQ=; b=kOAOOpdE4lIAIrXBxlLSe0FN1YRNPdZc3/gnl7hIV4DcVr1oSS4lD4CP6ziSgBVYKpszDIa7NePL0XH2H500SsRtQdxmOw/L/i4ftsHC9rdS4nrWVXpr6MRtsdGEu3WWqMaNzLt6JIqtdjhndR1vqlSaNPQ1Rl7e7wa6v8gGgxc= authentication-results: spf=none (sender IP is 216.69.139.50) smtp.mailfrom=jpes.com; mit.edu; dkim=none (message not signed) header.d=none;mit.edu; dmarc=none action=none header.from=jpes.com; x-originating-ip: 98.200.152.44 user-agent: Workspace Webmail 6.11.19 x-cmae-analysis: v=2.4 cv=LZT5VhTi c=1 sm=1 tr=0 ts=5faef5db a=+25y04uHEjsTsU0a5+/YiA==:117 a=y2T9wV5VyygA:10 a=RqfB-CqXghgA:10 a=IkcTkHD0fZMA:10 a=nNwsprhYR40A:10 a=e9nrSxl3y0zmgrKdo58A:9 a=QEXdDO2ut3YA:10 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-sid: dgJHkYFrgXhAo x-topics: [EE] x-mime-autoconverted: from quoted-printable to 8bit by PCH.mit.edu id 0ADL9LvX015433 x-mailman-approved-at: Fri, 13 Nov 2020 16:13:00 -0500 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 All, Does anyone have a Beckman DM27XL Handheld DMM? If so, would you be willing to take it apart and send me photos of the switch detent mechanism? I have one of these meters that I'm working on for a friend and the detent parts are not to be found. And there's really no intuitive insight into how it was implemented, except that in the top of the case around the periphery of the switch opening, there is a sereis of bumps and valleys that could take a spring loaded ball bearing to positively position the switch. But how that spring loaded ball is held in place, and how it is connected to the switch itself is not apparent. Photos showing how this is done would be invaluable in getting this meter operational again. If anyone can help out, let me know via this list and I can supply an email address that you can send the photos to directly. Thanks and Regards, Jim Regards, Jim --=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 .