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1. Topband: Flag Transformer (score: 1): Author: amdx@att.net (Mike Knowlton); Date: Sun, 8 Sep 2002 17:34:30 -0500; Hi Guys I'm going to try my hand at putting up a flag for this season. Does any=20 one have one or two Amidon FT140-43 toroids or a good place to order. Tks JV I made a transformer using a 4229 pot c; /archives//html/Topband/2002-09/msg00097.html (7,340 bytes)
2. Topband: Flag Transformer (score: 1): Author: amdx@att.net (Mike Knowlton); Date: Wed, 11 Sep 2002 06:47:30 -0500; Hi all,=20 Seems my info wasn't clear, I'll try to explain. 4229 is the size of the pot core, 3F3 is the type of ferrite material. to touch. A tab was brought out for connection,this is an >electrost; /archives//html/Topband/2002-09/msg00117.html (8,751 bytes)
3. Topband: Re: Vactrols and Flag (score: 1): Author: amdx@att.net (Mike Knowlton); Date: Sat, 13 Apr 2002 08:07:42 -0500; On my Flag I used a VTL3A27 that I got from Steve Byan. I got a range of 390 ohms to 1450ohms by using the following. I put a 1,330 ohm resistor in Parallel with the photocell--then a 300 ohm resisto; /archives//html/Topband/2002-04/msg00020.html (8,976 bytes)
4. Topband: Re; Vactrols and Flag (score: 1): Author: amdx@att.net (Mike Knowlton); Date: Sun, 14 Apr 2002 08:26:05 -0500; I'm not sure if this comment refers to the drawing on=20 my page, the bottom wire of my Flag is 12ft off the ground. The Flag measures 14ft x 29ft. I used the top rail for chain link=20 fence as mas; /archives//html/Topband/2002-04/msg00032.html (7,566 bytes)
5. Re: Topband: impedance transformer windings (score: 1): Author: amdx@att.net; Date: Tue, 28 Oct 2003 01:07:46 +0000; Hi Steve, Someone once decreed, "the reactance of the windings should be at least four times the impedance the winding is designed to look into." So if you have a 950 impedance, 4x950=3800 ohms of re; /archives//html/Topband/2003-10/msg00156.html (9,352 bytes)
6. Topband: Boonton Manual 160 Q meter (score: 1): Author: "amdx" <amdx@att.net>; Date: Tue, 25 Nov 2003 19:35:00 -0600; I have a Boonton Q-meter Type 160-A Technical manual. It is a War Department Technical manual # TM11-2635 Dated, 3 January 1945. Condition is good. If anyone has a Boonton 160-A and needs a manual pl; /archives//html/Topband/2003-11/msg00186.html (6,398 bytes)

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