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81. Re: [Amps] New 4-1000 Tubes ? (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Thu, 03 Jan 2013 17:27:16 -0500; Looks like Covimag in France still makes them and Richardson lists them as well. Mike, W1NR Don W4DNR _______________________________________________ Amps mailing list Amps@contesting.com http://list; /archives//html/Amps/2013-01/msg00030.html (8,366 bytes)
82. Re: [Amps] Tube dealers (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Sat, 25 May 2013 10:50:57 -0400; I have done several transactions with elexs.com and have been very happy. I have gotten tubes, sockets and bird elements from him. Mike, W1NR _______________________________________________ Amps mail; /archives//html/Amps/2013-05/msg00177.html (7,639 bytes)
83. Re: [Amps] More on two pin 220vac (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Tue, 15 Oct 2013 12:30:49 -0400; Why is two conductor 220 any different from two conductor 115 in the states? Older wiring here in the US has only two "pins", no ground pin and no polarization. A look at double insulated drills, com; /archives//html/Amps/2013-10/msg00271.html (8,331 bytes)
84. Re: [Amps] Best source for Gigavac GH-1 ? (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Sat, 09 Nov 2013 21:05:35 -0500; Direct from Gigavac to Hams is $77. Not sure but I thought Maxgain are usually used or NOS. http://www.gigavac.com/catalog/amateur-radio.html Mike, W1NR ______________________________________________; /archives//html/Amps/2013-11/msg00186.html (8,203 bytes)
85. Re: [Amps] Fwd: Re: Weird tubes in an amplifier (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Wed, 29 Jan 2014 16:43:25 -0500; I have the carcass of an old mil-surplus AM rig that has 4 of them in it. You can get audiofools to shell out hundreds of dollars for those tubes on that e-place. They are popular for building audio; /archives//html/Amps/2014-01/msg00299.html (8,670 bytes)
86. Re: [Amps] Vacuum relay needed (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Mon, 03 Feb 2014 05:34:00 -0500; Gigavac sells up to 3 a year to hams at big discounts. They don't list that one but you might check the specs of the G12SP to see if it will fit. http://www.gigavac.com/catalog/amateur-radio.html Mik; /archives//html/Amps/2014-02/msg00023.html (8,323 bytes)
87. [Amps] Eimac WEB site (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Fri, 21 Nov 2014 14:03:39 -0500; Anyone know what's up with the CPI-Eimac WEB site? 73 de Mike, W1NR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/; /archives//html/Amps/2014-11/msg00036.html (6,684 bytes)
88. Re: [Amps] Eimac WEB site (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Fri, 21 Nov 2014 14:58:49 -0500; I am getting a "computer quarantined" page. Seems they don't like my IP address... Mike, W1NR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contes; /archives//html/Amps/2014-11/msg00038.html (7,301 bytes)
89. Re: [Amps] High Voltage Wire (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Mon, 19 Jan 2015 20:23:12 -0500; Belden 8899 rubber test prod wire like http://www.alliedelec.com/search/productdetail.aspx?SKU=70004205 Mike, W1NR _______________________________________________ Amps mailing list Amps@contesting.co; /archives//html/Amps/2015-01/msg00165.html (8,947 bytes)
90. Re: [Amps] What tube? (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Wed, 28 Jan 2015 11:48:43 -0500; I agree. The 3-500 is about the only one to meet those requirements. I would even go with 3 of them in parallel to allow for high duty cycles like RTTY. Conduction and/or water cooled tubes will brea; /archives//html/Amps/2015-01/msg00344.html (9,320 bytes)
91. Re: [Amps] low output with QRO amp - SUCCESS- (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Fri, 06 Mar 2015 12:33:54 -0500; Are you sure the tube does not use beryllium? Mike, W1NR _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps; /archives//html/Amps/2015-03/msg00016.html (7,415 bytes)
92. Re: [Amps] vacuum relay (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Wed, 9 Sep 2015 06:48:45 -0400; Brand new factory direct. They don't show ham pricing any more so you have to email to get the special prices. http://www.gigavac.com/catalog/amateur-radio.html Mike, W1NR On 09/08/2015 10:13 PM, Pau; /archives//html/Amps/2015-09/msg00033.html (7,571 bytes)
93. Re: [Amps] Why 2 3CX800s instead of one 8877? (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Sat, 20 Apr 2019 10:22:04 -0400; 3CX800's will go into the same sockets and have similar high voltage and current requirements to the originals so it matches the tank circuit better. Going full legal limit might require rebuilding t; /archives//html/Amps/2019-04/msg00048.html (9,770 bytes)
94. Re: [Amps] HV Fuse (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Fri, 20 Sep 2019 15:38:52 -0400; I have an old Henry that has a Bussman HVB fuse. The larger HVJ is rated for 5KV. They are sand filled cardboard, not ceramic. Available from Mouser but are quite expensive. I'd look around for bette; /archives//html/Amps/2019-09/msg00049.html (9,372 bytes)
95. Re: [Amps] Alpha 87A Won't Transmit (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Fri, 9 Apr 2021 08:17:57 -0400; I find that 62/36/2 (2% silver) solder on silver plated connectors flows and wets much better than regular solder so filing is not needed. Mike, W1NR _______________________________________________ A; /archives//html/Amps/2021-04/msg00051.html (10,459 bytes)
96. Re: [Amps] 2K Classic X filament issue (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Tue, 3 Aug 2021 21:31:40 -0400; The 3-400's in my 2K will slowly work there way out of the sockets and require pushing them back in to get the filament connections restored. I've tried fixing the pins but I think socket replacement; /archives//html/Amps/2021-08/msg00006.html (8,116 bytes)
97. Re: [Amps] Testing Tubes with a Henry 2K (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Sun, 22 Aug 2021 07:58:30 -0400; Well... My 2K (original) is wired in parallel. It is also designed for 3-400's and won't accept a 3-500 unless you change the chimneys and change the heat dissipation caps to low profile ones or lowe; /archives//html/Amps/2021-08/msg00062.html (9,211 bytes)
98. Re: [Amps] Testing Tubes with a Henry 2K (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Mon, 23 Aug 2021 07:47:08 -0400; Yes you can. You need to keep the drive way down and keep grid and plate currents at half normal IF YOU CAN LOAD IT PROPERLY which is questionable. I ran mine with one of the 3-400's dead without kno; /archives//html/Amps/2021-08/msg00074.html (10,722 bytes)
99. Re: [Amps] Triode Amps (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Fri, 3 Dec 2021 08:35:56 -0500; Ameritron and Alpha use them. Seems like all sources for used ones have dried up but the Chinese ones work well IF you buy them from a reputable company who tests them and will stand by them with a w; /archives//html/Amps/2021-12/msg00032.html (9,314 bytes)
100. Re: [Amps] Bad 8877? (score: 1): Author: "Mike McCarthy, W1NR" <lists@w1nr.net>; Date: Sat, 1 Jan 2022 16:58:40 -0500; Pull the tube. Turn on the power. Does it still blow a fuse? Mike, W1NR On 1/1/2022 3:44 PM, Dick NY1E wrote: My HB 6M amp now blows the fuse in the HV line. I opened it up and after disconecting the; /archives//html/Amps/2022-01/msg00007.html (7,822 bytes)

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