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61. Re: [Amps] my little amp project of many hours..maybe 50% done (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Fri, 06 Jan 2006 17:35:00 +0100; Nice amp!! 73 Jim SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-01/msg00213.html (8,543 bytes)
62. Re: [Amps] Components Causing Distortion in Amplifiers (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Tue, 10 Jan 2006 08:14:20 +0100; The EU 4-400A is QB4-1100 or QY4-400, atleast when made by Philips. 73 SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mail; /archives//html/Amps/2006-01/msg00313.html (11,957 bytes)
63. Re: [Amps] Fw: Henry 8K (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Wed, 17 May 2006 06:05:40 +0200; If everyone ran Henry 8K´s and just would use 100W drive our ham bands would sound wounderful, instead we have the present situation which is truly awful. 73 Jim SM2EKM -- _____________________; /archives//html/Amps/2006-05/msg00174.html (6,635 bytes)
64. Re: [Amps] RE : who needs it? Henry 8K (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Wed, 24 May 2006 18:01:26 +0200; Who is Hans Solo? 73 SM2EKM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-05/msg00328.html (7,723 bytes)
65. Re: [Amps] RE : who needs it? Henry 8K (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Wed, 24 May 2006 19:56:32 +0200; Oh well, I always knew the guy as Han Solo but maybe Hans Solo is his brother. 73 Jim SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.cont; /archives//html/Amps/2006-05/msg00336.html (7,698 bytes)
66. Re: [Amps] twin 4CX-10 000D amplifier: multiple tubes (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Wed, 31 May 2006 17:26:53 +0200; Indeed! This is very very true. Needs to be VERY low inductive grounding. 73 Jim SM2EKM PS: What one also can do is, replace the cheramic spacers that sits betwen the grid rings with metal spacers, w; /archives//html/Amps/2006-05/msg00555.html (8,274 bytes)
67. Re: [Amps] RM ITALY HLA-150V (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Wed, 28 Jun 2006 06:21:15 +0200; Some has and some hasn´t. The HLA-150V seems to have. Usually not good at all. Whatever they are called it´s very low quality amplifiers and it´s sad these things show up on the ham; /archives//html/Amps/2006-06/msg00541.html (7,453 bytes)
68. Re: [Amps] HLA150 (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Wed, 28 Jun 2006 16:33:51 +0200; Ofcourse YOU did not have any problem, however you are not alone in this world!! I repeat again, some has bandpass filtering but some doesn´t, the HL-150 has. All of them use very bad bias regu; /archives//html/Amps/2006-06/msg00563.html (7,489 bytes)
69. Re: [Amps] HLA-150 information page (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Wed, 28 Jun 2006 21:23:04 +0200; This is what people with great knowledge writes about that so called review. http://www.eham.net/forums/Amplifiers/3947 By the way, the SD1446 seems to be a 60W transistor, 200+ Watts out from two of; /archives//html/Amps/2006-06/msg00597.html (7,486 bytes)
70. Re: [Amps] HLA-150? Nevermind. (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Thu, 29 Jun 2006 09:03:00 +0200; Yes please take Tom up on the offer, then something good will come out of this. It would be very interesting to see some measured data on the thing. 73 Jim SM2EKM -- _________________________________; /archives//html/Amps/2006-06/msg00616.html (8,442 bytes)
71. Re: [Amps] HLA-150 information page (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Thu, 29 Jun 2006 13:57:50 +0200; Yes, I´ve read this before but it´s very very true and it´s getting worse almost by the day. I´m sorry to say but I do think it´s a lost battle. By the way, from what yo; /archives//html/Amps/2006-06/msg00621.html (8,287 bytes)
72. Re: [Amps] Deja vu all over again (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Thu, 29 Jun 2006 18:57:58 +0200; No no Bill. It has never ended!!!!! 73 Jim SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-06/msg00637.html (9,923 bytes)
73. Re: [Amps] Parasitcs (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Sun, 02 Jul 2006 10:26:05 +0200; No, it´s interesting. 73 SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-07/msg00037.html (6,765 bytes)
74. Re: [Amps] 4CX10 000J (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Sun, 02 Jul 2006 17:55:27 +0200; surely no ham would use a thing like that, or? / Jim SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2006-07/msg00056.html (7,476 bytes)
75. Re: [Amps] 4CX10 000J (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Mon, 03 Jul 2006 08:25:39 +0200; Well, if I´m going to use almost a KW just to heat the tube I certainly wouldn´t run just a measly 1 KW of RF power. I would use the tube to more or less it´s full potential! That&a; /archives//html/Amps/2006-07/msg00071.html (10,080 bytes)
76. Re: [Amps] Bandwidth tests (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Tue, 04 Jul 2006 11:04:39 +0200; I just modulate the TX, i e speak into the microphone for a minute or so. Here you can see two examples of measurements, these two radios was fully modulated with speech. http://sk3w.shacknet.nu/sm2e; /archives//html/Amps/2006-07/msg00166.html (7,463 bytes)
77. Re: [Amps] 3-500Z convertion (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Sun, 23 Jul 2006 16:15:38 +0200; As far as I remember you can not run 4X500´s in zero bias GG, you will not be able to get correct ZSAC for linera operation. 4X500´s need screen and grid voltages to get correct operating; /archives//html/Amps/2006-07/msg00932.html (10,637 bytes)
78. Re: [Amps] [??????????????]Re: 3-500Z convertion (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Sun, 23 Jul 2006 18:47:29 +0200; Oh it was a TL922, my misstake. In any case it should be very similar with a TL922. Just check so you get correct operating point (ZSAC) for zero bias, however I more or less "know" that the 4X500 do; /archives//html/Amps/2006-07/msg00947.html (12,955 bytes)
79. Re: [Amps] 572B grid (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Sun, 23 Jul 2006 20:36:51 +0200; Yes but 170W into 2x572B´s that´s heavy. I bet IMD was quite poor. I´m not familiar with the 30L-1 but for a SB-200 around 75W is enough. However I remember back in the early 70&acu; /archives//html/Amps/2006-07/msg00957.html (9,675 bytes)
80. Re: [Amps] 572B grid (score: 1): Author: Jan Erik Holm <sm2ekm@telia.com>; Date: Sun, 23 Jul 2006 20:45:44 +0200; Just got corrected by a friend. 30L-1 is 4 tubes and SB-200 just 2, I forgot. Oh well, I must be getting old. 170W isn´t as bad as I tought then. /SM2EKM -- ____________________________________; /archives//html/Amps/2006-07/msg00960.html (10,147 bytes)

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