Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Tuned\s+Input\s+for\s+G\-G\s+50Mhz\s+amp\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Tuned\s+Input\s+for\s+G\-G\s+50Mhz\s+amp\s*$/: 19 ]

Total 19 documents matching your query.

1. [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: 4z4tl@iarc.org; Date: Fri, 19 Mar 2010 00:11:38 +0200; Hello all Trying to decide between a "Pi" and a "Tee" input circuit, for a 50Mhz single 3-400Z amp. (formerly AL-80A with 3-400Z and not the 3-500Z). Any thoughts please? Thanks in advance, Isaac, 4Z; /archives//html/Amps/2010-03/msg00431.html (6,831 bytes)
2. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sun, 21 Mar 2010 10:27:45 -0400; Pi as it allows a more efficient match as well as a lower Q for a no tune 400-500kHz bandwidth. Carl KM1H _______________________________________________ Amps mailing list Amps@contesting.com http://; /archives//html/Amps/2010-03/msg00436.html (7,892 bytes)
3. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "TL_IARC" <4z4tl@iarc.org>; Date: Mon, 22 Mar 2010 01:16:21 +0200; Hi Carl, Thanks. I thought a "Tee" would be easy to tune outside the amp in real time (one cap), and would basically achieve the same result as the "Pi". Someone elsewhere mentioned better harmonic t; /archives//html/Amps/2010-03/msg00450.html (8,951 bytes)
4. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Sun, 21 Mar 2010 20:18:08 -0400; Ive used the T on a few conversions such as when I drove a low impedance such as a 3 hole Alpha 76. The Pi is more forgiving when going from Eimac to Chinese 3-500's as an example I also use a T on t; /archives//html/Amps/2010-03/msg00452.html (10,989 bytes)
5. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: Larry Benko <xxw0qe@comcast.net>; Date: Sun, 21 Mar 2010 18:46:40 -0600; We generally think of PI networks as "low pass" and Tee networks as "high pass" but there are PI networks and Tee networks of both "low pass" and "high pass" topologies. A low pass PI network (CLC) a; /archives//html/Amps/2010-03/msg00453.html (8,470 bytes)
6. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Hardy Landskov" <n7rt@cox.net>; Date: Sun, 21 Mar 2010 19:35:54 -0700; With that being said, a T network works well with one adjustment on the input. I use one on my 6 meter amp. Remember, you still have that amplifier tube that is going to generate its own distortion.; /archives//html/Amps/2010-03/msg00455.html (10,220 bytes)
7. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>; Date: Sun, 21 Mar 2010 16:17:55 -0800; I believe Swan/Cubic in the 1500Z model amp used a "T" input network vs a "pi". Not too many of these were made and are somewhat rare on the used market. I had one for a short time about 15 years ago; /archives//html/Amps/2010-03/msg00492.html (10,497 bytes)
8. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: TexasRF@aol.com; Date: Tue, 23 Mar 2010 14:09:37 EDT; I might as well throw in my 6m input matching experience: I have an Ameritron AL1500 (uses 8877) converted from hf to 6m a few years back. This amplifier had the input tuned circuits inside a 4" X 4"; /archives//html/Amps/2010-03/msg00502.html (12,037 bytes)
9. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Carl" <km1h@jeremy.mv.com>; Date: Tue, 23 Mar 2010 14:52:28 -0400; Sounds like loading a mobile antenna or a shorty vertical at home. Works fine. Carl KM1H I might as well throw in my 6m input matching experience: I have an Ameritron AL1500 (uses 8877) converted fro; /archives//html/Amps/2010-03/msg00505.html (12,041 bytes)
10. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: Ron Youvan <ka4inm@tampabay.rr.com>; Date: Tue, 23 Mar 2010 14:56:47 -0400; I call it a tuned auto-transformer. -- Ron KA4INM - I'm proud to be Chuck's pop! _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mai; /archives//html/Amps/2010-03/msg00506.html (8,229 bytes)
11. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Bill, W6WRT" <dezrat1242@yahoo.com>; Date: Tue, 23 Mar 2010 16:02:54 -0700; ORIGINAL MESSAGE: REPLY: What do you call it? Good question. If I understand you right, you have a simple parallel resonant circuit with the input on one tap and the output on another tap. Correct? E; /archives//html/Amps/2010-03/msg00514.html (9,101 bytes)
12. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Han Higasa" <higasa@plum.ocn.ne.jp>; Date: Thu, 25 Mar 2010 10:19:35 +0900; hi all, In the book "Linear amplifier design book for radio amateur" by Eimac I found "nominal input impedance of 3-400Z is 122 ohms". I also found "A 2 Kilowatt 3-400Z Linear for six meters" by Will; /archives//html/Amps/2010-03/msg00593.html (9,411 bytes)
13. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: mikea <mikea@mikea.ath.cx>; Date: Wed, 24 Mar 2010 20:56:21 -0500; I would _lOVE_ to have a copy or a scan of that book. Where do I find it? -- Mike Andrews, W5EGO mikea@mikea.ath.cx Tired old sysadmin _______________________________________________ Amps mailing lis; /archives//html/Amps/2010-03/msg00594.html (8,275 bytes)
14. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Han Higasa" <higasa@plum.ocn.ne.jp>; Date: Thu, 25 Mar 2010 11:09:13 +0900; I have obtained it in the Yahoo Auction. It is consist of 146 pages of blue print. Maybe it have been published on early 1970s... How can I scan and expose it on the web? or anyone have already done?; /archives//html/Amps/2010-03/msg00595.html (9,970 bytes)
15. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: mikea <mikea@mikea.ath.cx>; Date: Wed, 24 Mar 2010 21:21:54 -0500; If no one else has done so, then perhaps you can find someone near you who will scan the book to PDF. If not, I will be very happy to do so. If you will make a copy of the book and mail that copy to; /archives//html/Amps/2010-03/msg00596.html (9,293 bytes)
16. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "David H Craig" <davidhcraig@verizon.net>; Date: Wed, 24 Mar 2010 22:27:24 -0400; The Orr Handbook 23rd Edition lists it as 120 ohms on page 15-18. I agree with Han-san, a Pi is best. Forget the "T". Dave N3DB _______________________________________________ Amps mailing list Amps@; /archives//html/Amps/2010-03/msg00597.html (11,176 bytes)
17. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: donroden@hiwaay.net; Date: Wed, 24 Mar 2010 22:00:02 -0500; Orr 19th says " Optimum linearity requires cathode-circuit Q that can only be supplied by a high-C tank circuit. " ( parallel tuned ) Don WA4NPL _______________________________________________ Amps m; /archives//html/Amps/2010-03/msg00599.html (11,752 bytes)
18. Re: [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "Bill, W6WRT" <dezrat1242@yahoo.com>; Date: Thu, 25 Mar 2010 10:23:16 -0700; ORIGINAL MESSAGE: REPLY: A pi-network is a parallel resonant circuit, believe it or not. Redraw it in the conventional "vertical" manner and you will see you have two caps in series with the ground m; /archives//html/Amps/2010-03/msg00621.html (9,684 bytes)
19. [Amps] Tuned Input for G-G 50Mhz amp (score: 1): Author: "TL_IARC" <4z4tl@iarc.org>; Date: Thu, 25 Mar 2010 23:49:04 +0200; Hello all Many thanks to all who replied and educated me. One thing is sure now, I have decided on the "Pi" for input. Now if anyone has a good source for a 3-30 pf 5-7Kv vacuum, or wants to depart w; /archives//html/Amps/2010-03/msg00629.html (8,328 bytes)

Current List: 1 - 19
Page: [1]