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1. [TowerTalk] Ham II Control Box (score: 1): Author: Todd Coulter <coulter@bellsouth.net>; Date: Thu, 26 Jan 2012 16:52:12 -0800 (PST); I am trying to replace the zener diode in a Ham II control box, but I am not sure exactly what it is. The markings on it are "13VR". Can anyone tell me what this crosses to (Specs?) so that I can hop; /archives//html/Towertalk/2012-01/msg00474.html (6,670 bytes)
2. Re: [TowerTalk] Ham II Control Box (score: 1): Author: n8de@thepoint.net; Date: Thu, 26 Jan 2012 20:05:17 -0500; Todd, That is the voltage regulator in the meter circuit. The transformer is 23v ac secondary, so I assume the zener is about 18v. Someone else may have exact specs. 73 Don N8DE _____________________; /archives//html/Towertalk/2012-01/msg00475.html (8,133 bytes)
3. Re: [TowerTalk] Ham II Control Box (score: 1): Author: Don Moman VE6JY <ve6jy.1@gmail.com>; Date: Fri, 27 Jan 2012 01:08:10 +0000; 13v _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towert; /archives//html/Towertalk/2012-01/msg00476.html (8,676 bytes)
4. Re: [TowerTalk] Ham II Control Box (score: 1): Author: "Jim Hargrave" <w5ifp@gvtc.com>; Date: Fri, 27 Jan 2012 08:22:44 -0600; Todd, The Zener is a 13v. However it will work with a 12v which is easier to find. The actual voltage is not critical as long as it will calibrate. You can add a 1N4000 diode in series with the Zener; /archives//html/Towertalk/2012-01/msg00479.html (9,069 bytes)
5. Re: [TowerTalk] Ham II Control Box (score: 1): Author: Todd Coulter <Coulter@bellsouth.net>; Date: Fri, 27 Jan 2012 09:35:09 -0500; Thanks to all that replied. I think that I found a couple of suitable replacements already using the information received. 73's Todd N4JRZ _______________________________________________ ____________; /archives//html/Towertalk/2012-01/msg00480.html (9,196 bytes)

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