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21. Re: [Amps] HF and 4cx250b's (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sat, 17 Jul 2004 16:20:47 +0200
R.Measures wrote: Another factor is cost. For example, two 8877s cost more than one 8171, and they will deliver only about 1/3 the output of an 8171 . However, the socket for an 8171 costs more. - ch
/archives//html/Amps/2004-07/msg00099.html (7,826 bytes)

22. Re: [Amps] 4CX250's (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Mon, 19 Jul 2004 08:35:58 +0200
4CX250B amps can also be built using no sockets what so ever. Very simple and easy and works extreamly good, forexample look at the YU1AW design. 73 Jim SM2EKM -- Bill L. Fuqua wrote: IF FOR USE ON H
/archives//html/Amps/2004-07/msg00114.html (7,784 bytes)

23. Re: [Amps] 3CX1000A7 question (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 25 Jul 2004 08:54:49 +0200
Friends! I have a couple of days got a home-built amp using a 3CX1000A7 - it deliver around 1200 watts out, key down - only tested it on 80 meters. It seems that it's built, in the seventies, with in
/archives//html/Amps/2004-07/msg00176.html (8,177 bytes)

24. [Amps] Vacum variable mounting flange (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 12 Aug 2004 07:52:25 +0200
I need one. Anyone got a spare to depart with? 73 Jim SM2EKM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2004-08/msg00106.html (6,766 bytes)

25. [Amps] Vacum variable mounting flange..correction (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 12 Aug 2004 14:49:20 +0200
Sorry should have been "part with", not depart!! Jan Erik Holm wrote: I need one. Anyone got a spare to depart with? 73 Jim SM2EKM _______________________________________________ Amps mailing list Am
/archives//html/Amps/2004-08/msg00110.html (7,116 bytes)

26. Re: [Amps] Pin Diodes? (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 20 Aug 2004 15:22:28 +0200
There are other diodes that can be used in that application. You might try BA379 (or BA479), low cost compared to the HP diode. 73 good luck / Jim SM2EKM -- Alek Petkovic wrote: Anybody know of a che
/archives//html/Amps/2004-08/msg00226.html (7,730 bytes)

27. Re: [Amps] Pin Diodes? (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Fri, 20 Aug 2004 20:50:57 +0200
Indeed, think I recall an article by Mr Ulrich Rhode in an old Ham Radio magazine that 1N4007&acute;s could be used in applications like this. Beats me what Peter is doing in this lousy country! 73 J
/archives//html/Amps/2004-08/msg00243.html (8,571 bytes)

28. Re: [Amps] drake l-4b from 4-400 to 3-500 (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 24 Aug 2004 15:56:58 +0200
I have never seen any bottles in an L-4B!! 73 Jim SM2EKM PS: Chuck it would be nice to know your call sign. -- Chris Pedder wrote: At 12:49 24/08/2004, Chuck wrote: whats the scoop with converting th
/archives//html/Amps/2004-08/msg00278.html (8,224 bytes)

29. Re: [Amps] 4CX350 in Dentron Clipperton V ????? (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sat, 09 Oct 2004 19:01:49 +0200
No you cant do that without a modification. What needs to be changed is the bias voltage. 73 Jim SM2EKM -- JimMoci@aol.com wrote: Some quick questions for the reflector. I just purchased a Dentron Cl
/archives//html/Amps/2004-10/msg00116.html (7,240 bytes)

30. Re: [Amps] Drake L4 tube replacement (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sat, 16 Oct 2004 07:22:43 +0200
Yes! Just like when you run out of gas in your car, just put new in. 73 Jim SM2EKM -- Jason Buchanan wrote: hi, Is it possible to put new 3-500Z(G) tubes in the L4, not L-4B? Would like to put new tu
/archives//html/Amps/2004-10/msg00223.html (6,804 bytes)

31. Re: [Amps] Drake L4 tube replacement (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 17 Oct 2004 06:46:45 +0200
Did surf the inet a bit. Found 3-400Z at www.tubedepot.com for $279.95, dont know if they still have them but maybe. Also 4-400A&acute;s and even 4-250A&acute;s could be used however sreen and grid h
/archives//html/Amps/2004-10/msg00232.html (9,024 bytes)

32. Re: [Amps] chimneys (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 17 Oct 2004 17:39:05 +0200
Is that the type CL1 lantern you are talking about? 73 Jim SM2EKM -- Mike Manship wrote: Quoting Bruce Lanning <blanning@acadia.net>: With all the talk about chimneys. Has anyone except me tried usin
/archives//html/Amps/2004-10/msg00241.html (7,748 bytes)

33. Re: [Amps] Who did it ? (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 27 Oct 2004 18:34:49 +0200
Check this link out. Looks like the 450TH amp is in a PC tower case. 73 Jim SM2EKM http://www5a.biglobe.ne.jp/~jh2clv/handmaderadio.htm -- hermans wrote: Has anyone got the idea to build a Amp in an
/archives//html/Amps/2004-10/msg00448.html (7,348 bytes)

34. Re: [Amps] Ebay (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 28 Oct 2004 21:18:54 +0200
I bet this Jessica is a ham an got a big amplifier! / Jim SM2EKM -- dittybop@mail.com wrote: Is this an Amp fourm or an Ebay fourm???? If I wanted to talk about Ebay I would go to an Ebay fourm. Let
/archives//html/Amps/2004-10/msg00492.html (6,503 bytes)

35. Re: [Amps] Parasitic Oscillation (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 04 Nov 2004 08:02:02 +0100
Will, This is interesting. I have had flashovers in the tank circuit in my 4-1000A amp being more then 1 inch long. What you write below could explain it. 73 Jim SM2EKM -- Will Matney wrote: Rich, be
/archives//html/Amps/2004-11/msg00060.html (9,753 bytes)

36. Re: [Amps] Parasites, Microbes and Other Hazards (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 02 Jan 2005 17:00:09 +0100
Yes, way too much "Black Jack". Hapy New Year / Jim SM2EKM -- k7fm wrote: So parasitic oscillations are really microbes after they have been partying? Happy New Year, Colin K7FM _____________________
/archives//html/Amps/2005-01/msg00014.html (7,716 bytes)

37. Re: [Amps] Air Gap (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 18 Jan 2005 08:52:15 +0100
Use vacum variables both for C1 and C2, 5 Kv units are enough. In the long run you will not be sorry. 73 good luck / Jim -- Rich wrote: I am getting parts together for my first amp. I have 3, 4-1000a
/archives//html/Amps/2005-01/msg00334.html (7,421 bytes)

38. Re: [Amps] Air Gap (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 18 Jan 2005 09:03:50 +0100
As I understand now after reading more posts on this matter the man wants to fabric the components by himself, please disregard this post of mine. However I admire KD0ZZ for the incentive, way to go
/archives//html/Amps/2005-01/msg00335.html (8,008 bytes)

39. Re: [Amps] Grid driven Multi-band amp using 4-1000 (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 19 Jan 2005 16:51:18 +0100
R.Measures wrote: A 200w transceiver will drive a 4-1000A in g-g or an 8171 in grid-driven. It will also drive the 8171 in g-g! 73 SM2EKM _______________________________________________ Amps mailing
/archives//html/Amps/2005-01/msg00366.html (6,811 bytes)

40. Re: [Amps] Grid driven Multi-band amp using 4-1000 (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 19 Jan 2005 19:58:30 +0100
R.Measures wrote: On Jan 19, 2005, at 7:51 AM, Jan Erik Holm wrote: R.Measures wrote: A 200w transceiver will drive a 4-1000A in g-g or an 8171 in grid-driven. It will also drive the 8171 in g-g! Yes
/archives//html/Amps/2005-01/msg00376.html (9,196 bytes)

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