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Total 45 documents matching your query.

21. Re: [Amps] HB Amps (score: 1)
Author: "k7rdx" <k7rdx@charter.net>
Date: Sat, 4 Mar 2006 11:03:35 -0800
The GS-35b would be the most logical choice for price,ease of assembly, and power output. The tube works just as well on 10 meters as on 160 and well into vhf/uhf. You do need a capable PSU..The thin
/archives//html/Amps/2006-03/msg00068.html (9,995 bytes)

22. Re: [Amps] HB Amps (score: 1)
Author: Bill Turner <dezrat@copper.net>
Date: Sat, 04 Mar 2006 13:11:23 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ It isn't often done, but I suspect it would make a decent lower power amp too for someone who wants perhaps 500 watts or so. A Ferr
/archives//html/Amps/2006-03/msg00076.html (8,970 bytes)

23. Re: [Amps] HB amps (score: 1)
Author: Mike Bondarev <mikebond@tochka.ru>
Date: Sun, 5 Mar 2006 10:58:21 +0000
I wonder if anyone know the input impedance for two 813's in GG? Any source for working input pi-network with coil winding data etc.. Also what max. grid current can we expect? Regards, Mike RL3BM __
/archives//html/Amps/2006-03/msg00081.html (8,702 bytes)

24. Re: [Amps] HB amps (score: 1)
Author: "Ed Swynar" <gswynar@durham.net>
Date: Sun, 5 Mar 2006 08:33:27 -0500
Hi Guys, No matter the IMD characteristics one db. either way, I'm of the opinion that if somebody wants to uphold the noble Amateur Radio tradition of our group being a collection of "...tinkerers &
/archives//html/Amps/2006-03/msg00083.html (11,655 bytes)

25. Re: [Amps] HB amps (score: 1)
Author: "W.F van Wyk" <zs6arf@telkomsa.net>
Date: Sun, 5 Mar 2006 15:55:00 +0200
Hello fellow enthusiasts, I must give support here and echo the sentiment of construction and if that entails using 813's so let it be the case. I have built a few amps getting experience using 813's
/archives//html/Amps/2006-03/msg00084.html (13,221 bytes)

26. Re: [Amps] HB Amps (score: 1)
Author: john.brewer@us.schneider-electric.com
Date: Mon, 6 Mar 2006 13:42:46 -0500
The price of new 813s, versus New Old Stock 813s? There are no new 813s, only new old stock A pair of NOS 813's can be had for 40-60$ today. A pair of 3-500Zs are closer to $290. That's a big differe
/archives//html/Amps/2006-03/msg00123.html (8,885 bytes)

27. Re: [Amps] HB Amps (score: 1)
Author: Bill Turner <dezrat@copper.net>
Date: Mon, 06 Mar 2006 11:13:35 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ No new 813s? RF Parts has Taylor brand listed for $37.95. The comparison was to a *single* 3-500Z, not a pair. A pair of the Taylor
/archives//html/Amps/2006-03/msg00124.html (9,031 bytes)

28. Re: [Amps] HB Amps (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 06 Mar 2006 14:28:13 -0500
According to Shuguang Tube in China, they're making new 813's and 811's if I recall. http://www.shuguangtubes.com/ English Pages; http://enshuguangtubes.chsee.com/oldchsee/shuguangtubes/index.asp Pro
/archives//html/Amps/2006-03/msg00125.html (10,715 bytes)

29. Re: [Amps] HB Amps (score: 1)
Author: "Will Matney" <craxd1@verizon.net>
Date: Mon, 06 Mar 2006 14:31:53 -0500
-- CURRENT GLASS TUBE MANUFACTURERS (not counting exotic devices, such as photomultipliers and microwave devices) by Eric Barbour--October 1997 -- CHINA: Shuguang Electrical Factory No. 1, Shuguang:
/archives//html/Amps/2006-03/msg00126.html (15,261 bytes)

30. Re: [Amps] HB Amps (score: 1)
Author: Gudguyham@aol.com
Date: Mon, 6 Mar 2006 15:11:41 EST
I'll agree re the GS-35B...certainly a bargin at the moment. Gentlemen, I have found that a single GS-35B used with the same power supply as with a pair of 3-500's will make about 100 watts more powe
/archives//html/Amps/2006-03/msg00127.html (8,892 bytes)

31. Re: [Amps] HB Amps (score: 1)
Author: Tony King - W4ZT <amps080605@w4zt.com>
Date: Mon, 06 Mar 2006 15:39:59 -0500
That's right where it should be. With only 13dB of gain vs the 8877's 15dB of gain, that's right on target. It takes a little more drive but most folks have more drive today than they know what to do
/archives//html/Amps/2006-03/msg00129.html (10,663 bytes)

32. Re: [Amps] HB Amps (score: 1)
Author: Bill Turner <dezrat@copper.net>
Date: Mon, 06 Mar 2006 13:44:13 -0800
ORIGINAL MESSAGE: <snip> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 211? That's a hoot. After WW2 you could buy 211s for 25 cents each at any surplus joint. A truly ancient design. I wonder wh
/archives//html/Amps/2006-03/msg00131.html (9,203 bytes)

33. Re: [Amps] HB Amps (score: 1)
Author: Bill Turner <dezrat@copper.net>
Date: Mon, 06 Mar 2006 13:49:40 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Not all contesters. The only tube I ever had blow during a contest was a 3CX1200 in my Ameritron amp of the same name. It was repla
/archives//html/Amps/2006-03/msg00132.html (7,943 bytes)

34. Re: [Amps] HB Amps (score: 1)
Author: "ad5gb" <ad5gb@myway.com>
Date: Mon, 6 Mar 2006 17:44:29 -0500 (EST)
The 211 is popular in some audiophool er..... audiophile circles! -- Randall D. DuCharme (Radio AD5GB) Powered by Solaris! http://www.opensolaris.org ORIGINAL MESSAGE:At 11:31 AM 3/6/2006, Will Matne
/archives//html/Amps/2006-03/msg00133.html (9,277 bytes)

35. Re: [Amps] HB Amps (score: 1)
Author: Bill Turner <dezrat@copper.net>
Date: Mon, 06 Mar 2006 14:46:27 -0800
ORIGINAL MESSAGE: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I should have known. Thanks. Bill, W6WRT _______________________________________________ Amps mailing list Amps@contesting.com http
/archives//html/Amps/2006-03/msg00134.html (7,639 bytes)

36. Re: [Amps] HB Amps (score: 1)
Author: Alek Petkovic <vk6apk@eon.net.au>
Date: Tue, 07 Mar 2006 06:58:04 +0800
I buy my Shuguang tubes from http://www.mablexporting.cn Check out the tube listing at http://www.mablexporting.cn/tubes.asp Email Mable at mablelee@mablexporting.cn I have bought 572B, 811A and 6146
/archives//html/Amps/2006-03/msg00135.html (10,603 bytes)

37. Re: [Amps] HB Amps (score: 1)
Author: <sccook1@cox.net>
Date: Mon, 6 Mar 2006 18:57:30 -0500
Some of the Henry amps used the 3cx1200A7... -S _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-03/msg00139.html (9,116 bytes)

38. Re: [Amps] HB Amps (score: 1)
Author: Steve Katz <stevek@jmr.com>
Date: Mon, 6 Mar 2006 16:16:35 -0800
The Henry 3K Classic Mk III, 3K Classic X and 3K Premier actually used a 3CX1200D7, which is a different tube... Never had the slightest problem with mine, but Henry overcooled the pants off it with
/archives//html/Amps/2006-03/msg00141.html (10,045 bytes)

39. Re: [Amps] HB Amps (score: 1)
Author: "Steven Cook" <sccook1@cox.net>
Date: Mon, 6 Mar 2006 19:25:34 -0700
Oops! You're right -- the D7 version. My mistake. -Steve (((WG7K))) -- Original Message -- From: "Steve Katz" <stevek@jmr.com> To: <sccook1@cox.net>; "Bill Turner" <dezrat@copper.net>; <Gudguyham@aol
/archives//html/Amps/2006-03/msg00154.html (10,972 bytes)

40. Re: [Amps] HB Amps (score: 1)
Author: Philip Leonard WV&Oslash;T <leolists@seidkr.com>
Date: Fri, 10 Mar 2006 11:08:49 -0600
My 3K Classic X Mk II uses a 3CX1200A7... Philip _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-03/msg00246.html (7,727 bytes)

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