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81. Re: [Amps] 3cx3000A7 driver (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 23 Jul 2006 20:51:17 +0200
Well Hallicrafters had the SR-2000. They claimed 2 KW PEP input. 73 SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman
/archives//html/Amps/2006-07/msg00961.html (8,055 bytes)

82. Re: [Amps] [??????????????]Re: [??????????????]Re: 3-500Z convertion (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Mon, 24 Jul 2006 07:43:57 +0200
My mailserver didn&acute;t want to forward this message, sohu.co is a "non-existant domain it reports. I send to AMPS list instead. -- Hsu, Well I based my point of view on what a friend told me a fe
/archives//html/Amps/2006-07/msg00997.html (10,281 bytes)

83. Re: [Amps] PIN diode mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Jul 2006 09:40:07 +0200
On my FT-1000D I can measure a substantial difference replaceing the stock 1SS83 diodes with BA479 diodes. Sure I do agree with a lot of your reasoning below however I do think you are generalizing f
/archives//html/Amps/2006-07/msg01144.html (9,853 bytes)

84. Re: [Amps] PIN diode mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Jul 2006 12:48:07 +0200
Then FT-1000D is a low end radio! 2nd order IMD improves over 20 dB when doing PIN diode mod. By the same time IMDDR3 2 kHz spaceing improves approx 15 dB. Voodoo....yeah right! 73 SM2EKM -- ________
/archives//html/Amps/2006-07/msg01150.html (8,003 bytes)

85. Re: [Amps] PIN diode mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Jul 2006 13:23:31 +0200
Yaesu did a PIN diode mod on FT-1000D starting with lot 28, they replaced 1SS83RE with 1SV257TB, it&acute;s all in tecnical bulletin TB93201. Yours could be lot 28 or after. _________________________
/archives//html/Amps/2006-07/msg01157.html (8,288 bytes)

86. Re: [Amps] PIN diode mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Jul 2006 13:39:07 +0200
Yes, however that would show up in a raised noise floor, for me it didn&acute;t. 73 SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contes
/archives//html/Amps/2006-07/msg01161.html (7,192 bytes)

87. Re: [Amps] PIN diode mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Jul 2006 14:04:23 +0200
Wrong. According to Yaesu technical bulletin TB-93201 they started with lot 28 in FT-1000D, it is dated 8 Feb 1993 and that&acute;s before the MP. If you don&acute;t mind I think I beleive Yaesu! 73
/archives//html/Amps/2006-07/msg01162.html (8,138 bytes)

88. Re: [Amps] PIN diode mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Jul 2006 15:07:29 +0200
Just to be correct. Since my TB93201 copy is a bit bad I missread the replacement diode type, it looks more like 1SV157T1 however it seems to be obsolete. 73 Jim SM2EKM -- ___________________________
/archives//html/Amps/2006-07/msg01167.html (7,988 bytes)

89. Re: [Amps] PEP power.. (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Mon, 16 Oct 2006 06:47:01 +0200
Isn&acute;t this a correct defenition of PEP? peak envelope power (of a radio transmitter): The average power supplied to the antenna transmission line by a transmitter during one radio frequency cyc
/archives//html/Amps/2006-10/msg00156.html (8,296 bytes)

90. Re: [Amps] Amps Digest, Vol 54, Issue 3 (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Mon, 04 Jun 2007 05:10:55 +0200
Why? Please explain. / Jim SM2EKM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2007-06/msg00020.html (6,831 bytes)

91. Re: [Amps] IMD (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Sep 2007 07:44:11 +0200
Why then talk about 750W all the time? You do claim (with good tubes) that the box is a 750W amplifier! Why not test at 750W then? Sorry but this is very weird to me. ________________________________
/archives//html/Amps/2007-09/msg00314.html (8,032 bytes)

92. Re: [Amps] IMD (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Wed, 26 Sep 2007 10:24:52 +0200
And guess who lives in Danbury, Ct. Oh well............. SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a
/archives//html/Amps/2007-09/msg00318.html (7,685 bytes)

93. Re: [Amps] IMD (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 27 Sep 2007 08:31:09 +0200
Who cares about Hot Rods, Volvo&acute;s or muscel cars, why do we have to be this silly? This is the amplifier list as far as I know. I&acute;ve wrenched and driven Super Stockers for 20 years myself
/archives//html/Amps/2007-09/msg00361.html (8,595 bytes)

94. Re: [Amps] IMD (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 27 Sep 2007 08:35:37 +0200
Very well put, thanks! This is my wish too, just lets be constructive in a polite manner. 73 Jim SM2EKM -- _______________________________________________ Amps mailing list Amps@contesting.com http:/
/archives//html/Amps/2007-09/msg00362.html (8,590 bytes)

95. Re: [Amps] Another SB200 (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 27 Sep 2007 09:30:54 +0200
Andre, Where do you read that? The SB-200 does not have any meter that reads output power in watts. Why speculate in rebuilding the amp before you actually know whats wrong with it? To me you actuall
/archives//html/Amps/2007-09/msg00367.html (8,110 bytes)

96. Re: [Amps] SB220 "A" mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sat, 29 Mar 2008 07:38:31 +0100
Sorry but no. A speaker can not "rectify" RF. Lets not start another wives tale. _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mail
/archives//html/Amps/2008-03/msg00330.html (8,402 bytes)

97. Re: [Amps] SB220 "A" mods (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sat, 29 Mar 2008 18:33:34 +0100
No it can NOT. I persist! I donīt think I have to explain what a speaker is, it has been clear to me for 50 years. _______________________________________________ Amps mailing list Amps@contesting.co
/archives//html/Amps/2008-03/msg00341.html (10,817 bytes)

98. Re: [Amps] Relays (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 30 Mar 2008 20:59:02 +0200
I also use VOX PTT anf foot switch PTT, never had a problem. I have a number of different amplifiers using RJ1A relays etc etc, however I never use QSK. As with everything in life some people will me
/archives//html/Amps/2008-03/msg00367.html (8,838 bytes)

99. Re: [Amps] Relays (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Sun, 30 Mar 2008 21:17:14 +0200
True of course. However if we need 100% percent security we have to have backup units. Thatīs a decision we have to make, itīs a matter of how important we think it is. ______________________________
/archives//html/Amps/2008-03/msg00369.html (9,162 bytes)

100. Re: [Amps] 3 1/8 to 7/16 ? (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Thu, 17 Apr 2008 08:24:32 +0200
And what was it? I never saw a reply. Too bad people canīt post to the list so others can learn also, oh well thatīs life.............. _______________________________________________ Amps mailing li
/archives//html/Amps/2008-04/msg00225.html (7,604 bytes)

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