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Total 216 documents matching your query.

61. [Amps] Russian GU5B: anyone used this tube? (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Mon, 29 Jun 2009 11:50:47 +0100
Hi all Has anyone used this tube at all? Anyone got experience of building or operating an amp with this particular bottle? Cheers Dave G0OIL Dear Felipe, What a coincidence! I just got this quarter-
/archives//html/Amps/2009-06/msg00141.html (8,660 bytes)

62. Re: [Amps] 4-1000A in LK2000 (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Fri, 3 Jul 2009 22:47:03 +0100
I assume this is a GG amp? In which case the 4-1000 will do a great job. ohms. I'd just experiment with the tuned input a bit. Driving my old 4-1000 amp with 100 watts from a Ten Tec Omni V which is
/archives//html/Amps/2009-07/msg00084.html (10,481 bytes)

63. [Amps] FW: 4-1000A in LK2000 (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Sat, 4 Jul 2009 10:15:59 +0100
_______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-07/msg00088.html (6,397 bytes)

64. Re: [Amps] 4-1000A in LK2000 (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Sat, 4 Jul 2009 10:22:03 +0100
Hi Dick Just strap it to ground and treat it as the grid. Sure, it lowers the amplification factor but if you have a modern 100 or 200 watt transceiver who cares? I did consider rebuilding my amp as
/archives//html/Amps/2009-07/msg00089.html (9,606 bytes)

65. Re: [Amps] 4-1000A in LK2000 (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Sun, 5 Jul 2009 09:04:24 +0100
Yes, I forgot to say 'happy Independence Day', Kevin. I'll bet you're glad that your ancestors secured independence from the lousy British government After 12 years of Blair and Brown and possibly ou
/archives//html/Amps/2009-07/msg00107.html (9,666 bytes)

66. Re: [Amps] Talk about a rough life! (score: 1)
Author: DAVE WHITE <mausoptik@btinternet.com>
Date: Mon, 13 Jul 2009 19:57:24 +0000 (GMT)
eek!  there are things growing in it!  Still, as the man says it probably still works.  At least it's not like the overheated tubes covered in carbonised dust that are usually seen on fleamarket tabl
/archives//html/Amps/2009-07/msg00184.html (8,565 bytes)

67. Re: [Amps] Talk about a rough life! (score: 1)
Author: DAVE WHITE <mausoptik@btinternet.com>
Date: Tue, 14 Jul 2009 06:35:08 +0000 (GMT)
"It must be a sickness."  - Michael Baker  K7DD My wife has sometimes likened DXCC/IOTA chasing and contesting to a particular flavour of obsessive-compulsive disorder, so you may have a point. I thi
/archives//html/Amps/2009-07/msg00195.html (9,309 bytes)

68. Re: [Amps] inexpensive HV fuse (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Wed, 22 Jul 2009 15:15:46 +0100
I concur..... If you want to limit flashover damage use a high power surge limit resistor in the HT line between capacitor stack and plate choke, and use a fuse or overcurrent trip in the primary The
/archives//html/Amps/2009-07/msg00275.html (7,848 bytes)

69. Re: [Amps] Eimac AS newsletters (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Fri, 31 Jul 2009 11:06:22 +0100
I have a copy of this one. Do you want me to scan it or photocopy and mail it? Cheers Dave G0OIL Does anyone have a copy of EIMAC AS-45? ( design and construction techniques for linear amplifiers usi
/archives//html/Amps/2009-07/msg00429.html (7,351 bytes)

70. Re: [Amps] Cleaning Cigarette tar....? (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Sat, 1 Aug 2009 06:39:09 +0100
I've used automotive brake cleaner to good effect. Also cellulose or xylene thinners would work. I bought an SB220 some years ago that looked like it was gold anodised inside and instantly filled the
/archives//html/Amps/2009-07/msg00463.html (10,247 bytes)

71. Re: [Amps] Eimac AS newsletters (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Sat, 1 Aug 2009 06:47:08 +0100
I have all the Eimac newsletters that I'm aware of, but they're all in paper format. When I have a little time I will scan them and save them as PDFs If it's ok with Carl I'll put them on a DVD and s
/archives//html/Amps/2009-07/msg00464.html (9,762 bytes)

72. Re: [Amps] Eimac AS newsletters (score: 1)
Author: DAVE WHITE <mausoptik@btinternet.com>
Date: Sun, 2 Aug 2009 08:41:06 +0000 (GMT)
ok thanks Carl I'll get busy with the scanner (hopefully) soon.  cheers OILy Thats fine with me Dave Carl KM1H -- Original Message -- From: "Dave white" <mausoptik@btinternet.com> To: "Jeff Blaine AC
/archives//html/Amps/2009-08/msg00022.html (10,704 bytes)

73. Re: [Amps] parasitic oscillation techniques (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Tue, 25 Aug 2009 11:47:00 +0100
That's a great story, Paul! Reid Brandon at Eimac (W6MTF to thee and me) has given me a lot of help too When I built my 3CX3000 amp a few years ago I had problems with very low gain having built a tr
/archives//html/Amps/2009-08/msg00489.html (11,281 bytes)

74. Re: [Amps] Dimished Tube Life (score: 1)
Author: Dave white <mausoptik@btinternet.com>
Date: Fri, 25 Sep 2009 12:10:06 +0100
The answer at least made me laugh, As everyone is now saying, there are a zillion variables in play so it's a bit of an impossible question. What filament voltage? Filament soft start? Ht? Cooling? S
/archives//html/Amps/2009-09/msg00309.html (11,219 bytes)

75. Re: [Amps] 73 Magazine (score: 1)
Author: DAVE WHITE <mausoptik@btinternet.com>
Date: Fri, 25 Sep 2009 21:33:31 +0000 (GMT)
I don't think that 73 magazine was ever scanned and distributed on CD - though I could be wrong.  If it was available, I'd certainly buy a copy.  Like you I've found the copies of Ham Radio extremely
/archives//html/Amps/2009-09/msg00319.html (10,872 bytes)

76. Re: [Amps] 73 Magazine (score: 1)
Author: DAVE WHITE <mausoptik@btinternet.com>
Date: Sat, 26 Sep 2009 08:18:54 +0000 (GMT)
"slowly rereading QST in the "loo"" ... I'd give the prunes and high fibre diet a miss if I were you.... D Ive never been able to appreciate CD versions and QST in particular is mighty poor from what
/archives//html/Amps/2009-09/msg00335.html (12,589 bytes)

77. Re: [Amps] 3cpx1500/a7 for sale (score: 1)
Author: DAVE WHITE <mausoptik@btinternet.com>
Date: Thu, 22 Oct 2009 19:46:40 +0000 (GMT)
were too grumpy to join the party).    Keep going beyond Maine for about 3000 miles :-)   sorry, Carl.  Couldn't resist........   cheers   Dave G0OIL That is the symbol for the money known as Euro.
/archives//html/Amps/2009-10/msg00299.html (9,902 bytes)

78. Re: [Amps] 3cpx1500/a7 for sale (score: 1)
Author: Dave White <mausoptik@btinternet.com>
Date: Fri, 23 Oct 2009 11:08:09 +0100
Someone needs to drink less strong coffee... Dave G0OIL It is 73 AND NOT 73'S!!!!!! 73=BEST WISHES THERE FOR 73'S= BEST WISHES(ES OR S)? NO MATTER IT IS INCORRECT AND THE SEND LOOKS QUITE. ING.......
/archives//html/Amps/2009-10/msg00304.html (8,708 bytes)

79. Re: [Amps] George W6TC (score: 1)
Author: Dave White <mausoptik@btinternet.com>
Date: Fri, 20 Nov 2009 18:45:03 +0000
'Only hope I still have the drive to do the same' Let W6TC be your inspiration. He'll appreciate the compliment and smile down on you Dave G0OIL I started on my 8877 project about a year ago and Geor
/archives//html/Amps/2009-11/msg00211.html (7,506 bytes)

80. Re: [Amps] Right Angle UHF Connector (score: 1)
Author: Dave White <mausoptik@btinternet.com>
Date: Mon, 23 Nov 2009 14:42:20 +0000
I know that suppliers like Amphenol and Greenpar make such things. In the UK I'd probably order such things from Farnell. Perhaps Mouser would sell such items? If you get totally stuck just let me kn
/archives//html/Amps/2009-11/msg00241.html (8,477 bytes)

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