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Total 6 documents matching your query.

1. [Amps] AL-1200 Tuning Capacitor Range (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Fri, 17 Oct 2014 23:43:17 -0500; I have an AL-1200 that works very well using the 3CX1200A7 tube, but at the bottom end of 15 m the plate tune capacitor needs to be almost completely unmeshed for proper tuning. The load control is n; /archives//html/Amps/2014-10/msg00152.html (6,747 bytes)
2. Re: [Amps] AL-1200 Tuning Capacitor Range (score: 1): Author: "Dave Hachadorian" <k6ll.dave@gmail.com>; Date: Fri, 17 Oct 2014 22:05:23 -0700; Reduce the inductance. This is usually most easily done by spreading out the turns on the 21 MHz coil. Dave Hachadorian, K6LL Yuma, AZ I have an AL-1200 that works very well using the 3CX1200A7 tube,; /archives//html/Amps/2014-10/msg00154.html (8,336 bytes)
3. Re: [Amps] AL-1200 Tuning Capacitor Range (score: 1): Author: Alek Petkovic <vk6apk@bigpond.com>; Date: Sat, 18 Oct 2014 16:25:14 +0800; G'day Kim. Dunno if the AL-1200 is the same as the AL-1500 where the markings on the front panel indicate that the plate cap should be tuning at the spot you mentioned. Yeah, I know. Different tube b; /archives//html/Amps/2014-10/msg00156.html (9,222 bytes)
4. Re: [Amps] AL-1200 Tuning Capacitor Range (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Sat, 18 Oct 2014 07:15:35 -0500; Thanks, both. Had I given this more than passing thought at 11 PM, the answer would have obvious! Next chance I have, I'll see if I can spread out the turns a bit. I can't get the cover off where it; /archives//html/Amps/2014-10/msg00159.html (9,369 bytes)
5. Re: [Amps] AL-1200 Tuning Capacitor Range (score: 1): Author: "Carl" <km1h@jeremy.qozzy.com>; Date: Sat, 18 Oct 2014 11:59:48 -0400; If the tank is resonating at "almost" unmeshed and there are two resonance points as you continue the rotation youre fine, leave it alone. Carl KM1H Thanks, both. Had I given this more than passing t; /archives//html/Amps/2014-10/msg00165.html (10,514 bytes)
6. Re: [Amps] AL-1200 Tuning Capacitor Range (score: 1): Author: Kim Elmore <cw_de_n5op@sbcglobal.net>; Date: Sat, 18 Oct 2014 12:44:50 -0500; Thanks, Carl! The tuning capacitor was *completely* unmeshed and I could not find the expected "double dip" points, which is what concerned me. I could never know if I was truly resonant or merely cl; /archives//html/Amps/2014-10/msg00171.html (9,036 bytes)

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