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1. [Amps] 432 MHz stripline (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Tue, 24 Jan 2012 02:30:37 +0000 (UTC); Hi gang, A few weeks ago I asked the group about modification to my 8874 stripline 432 MHz amplifier to replace it with a 3cx800. Well I made the modifications and extended just the very back portion; /archives//html/Amps/2012-01/msg00171.html (7,508 bytes)
2. Re: [Amps] 432 MHz stripline (score: 1): Author: David Kirkby <david.kirkby@onetel.net>; Date: Tue, 24 Jan 2012 02:45:54 +0000; 1) Install the tube. 2) Have the power off 3) Put the GDO near the stripline and find the dip. 4) Gradually move the GDO further from the stripline. The dip will get weaker as the GDO is couples less; /archives//html/Amps/2012-01/msg00172.html (8,288 bytes)
3. Re: [Amps] 432 MHz stripline (score: 1): Author: TexasRF@aol.com; Date: Mon, 23 Jan 2012 22:08:10 -0500 (EST); Hi All, not to be discouraging, but, using a GDO at UHF is going to be an exercise in frustration. When the cavity cover is removed, the frequency of the resonator will change drastically and have no; /archives//html/Amps/2012-01/msg00173.html (10,738 bytes)
4. Re: [Amps] 432 MHz stripline (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Tue, 24 Jan 2012 03:14:39 +0000 (UTC); Hi Gerald, You've hit the nail on the head on why I asked the question. Every time I took the stripline cover off and put it back on I got different results. In fact, I have a suspician the original; /archives//html/Amps/2012-01/msg00174.html (11,889 bytes)
5. Re: [Amps] 432 MHz stripline (score: 1): Author: "Dave" <dave@g8kbv.demon.co.uk>; Date: Wed, 25 Jan 2012 02:25:23 -0800; Tube installed (no extra load resistor) Lid on and all screws in and secure, no power in any way connected. Feed your sig-gen or sweeper into the PA Output jack, via a 10dB (at most) attenuator then; /archives//html/Amps/2012-01/msg00181.html (7,970 bytes)
6. Re: [Amps] 432 MHz stripline (score: 1): Author: Paul Decker <kg7hf@comcast.net>; Date: Thu, 26 Jan 2012 02:30:33 +0000 (UTC); Thanks Dave, I'll give that a try my "return loss" meter is actually pc based and provides a sweep generator (AIMuhf) then graphs the results of the sweep so I can likely run a sweep and see which di; /archives//html/Amps/2012-01/msg00195.html (8,744 bytes)

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