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21. [Amps] Adhesive for tube chimneys (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Sun, 6 Nov 2005 14:41:05 +0700; Having secured some suitable high temperature rubber sheet to fabricate chimneys for my Alpha 78 I am now looking for a suitable adhesive. Any suggestions on what to look for? 73 Martin - HS0ZED ____; /archives//html/Amps/2005-11/msg00071.html (6,232 bytes)
22. [Amps] Matching 8874's (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Tue, 10 Jan 2006 22:19:23 +0700; I have just done a deal, I think, to secure two boxed unused Eimac 8874 tubes for my Alpha 78 which of course uses 3 of them. A few questions. Can I run the amp with either 1 or 2 tubes, either tempo; /archives//html/Amps/2006-01/msg00323.html (6,457 bytes)
23. [Amps] PSU Capacitors question (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Sat, 25 Feb 2006 10:45:18 +0700; Whilst looking for something completely unrelated the other day in a local parts shop I noticed some interesting looking capacitors. Was wondering if they sound suitable for a big power supply. The o; /archives//html/Amps/2006-02/msg00543.html (6,471 bytes)
24. Re: [Amps] [BULK] - DIN stands for....? (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Sun, 26 Feb 2006 15:15:48 +0700; Hi, Personally, I like D types. OK - it's a pain making the panel hole, but even low cost ones are decent connectors. Pay a few pennies more, and you get something really nice. Steve ________________; /archives//html/Amps/2006-02/msg00580.html (8,812 bytes)
25. [Amps] Alpha 78 update (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Tue, 28 Feb 2006 21:30:27 +0700; Some time ago I obtained two Alpha 78 amplifiers. Both were fairly rough but they have responded well to cleaning. The first has been operational for some months and has been working quite well with; /archives//html/Amps/2006-02/msg00664.html (7,863 bytes)
26. [Amps] Alpha 78 voltage sag (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Thu, 2 Mar 2006 21:44:59 +0700; I had a good number of replies to my questions concerning likely output for the Alpha 78 and in the process uncovered what is clearly a problem here with the AC supply line. The distribution is done; /archives//html/Amps/2006-03/msg00021.html (7,771 bytes)
27. Re: [Amps] Alpha 78 voltage sag (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Sun, 5 Mar 2006 23:50:09 +0700; This is interesting information, together with the later note from Will suggests a real need to be cautious about equipment designed for 60Hz only supplies when run pretty much anywhere other than in; /archives//html/Amps/2006-03/msg00092.html (10,981 bytes)
28. [Amps] Solid state amp (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Thu, 06 Jul 2006 20:11:14 +0700; With all this talk about these medium voltage FETs I am reminded that earlier this year there was mention of two solid state amps from Elecraft, KPA800 and KPA1500. Anybody hear anything recently? I; /archives//html/Amps/2006-07/msg00240.html (6,301 bytes)
29. [Amps] Henry 2K manual (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Wed, 19 Jul 2006 21:43:46 +0700; Anybody have, or know where I can get, an electronic copy of the manual for a 2K Classic X ? Thanks Martin, HS0ZED _______________________________________________ Amps mailing list Amps@contesting.co; /archives//html/Amps/2006-07/msg00632.html (6,274 bytes)
30. [Amps] Henry 2K (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Thu, 20 Jul 2006 22:35:20 +0700; I guess nobody has a Henry 2K manual :-( Any chance somebody may have or know where I can see a schematic at least. 73, Martin HS0ZED _______________________________________________ Amps mailing list; /archives//html/Amps/2006-07/msg00675.html (6,275 bytes)
31. Re: [Amps] Henry 2K (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Sat, 22 Jul 2006 14:06:56 +0700; This is by way of a big thanks to all who have helped so far with the information concerning the Henry 2K. Perhaps the absence of a accurate schematic is not so surprising since it seems this is the; /archives//html/Amps/2006-07/msg00840.html (8,051 bytes)
32. [Amps] Recommended 3-500's (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Sun, 23 Jul 2006 12:38:25 +0700; The Henry 2K Classic X heavy duty is now useable it seems. It is going to need a complete strip down and cleaning, a sort of mini restoration but it does look as if it is going to be a very nice ampl; /archives//html/Amps/2006-07/msg00912.html (7,383 bytes)
33. Re: [Amps] Flash arcs (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Fri, 28 Jul 2006 10:41:40 +0700; I vote for valve as well, and anode, and heater. I have always wondered about grid since it does seem to suggest what it looks like rather than what it does. I presume from Mike's second call that he; /archives//html/Amps/2006-07/msg01228.html (9,814 bytes)
34. Re: [Amps] conversion scale from dbu to microvolts (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Sat, 29 Jul 2006 21:30:44 +0700; Hi Fern, You need to be a little careful with some of the Japanese conversions 'sometimes'. Ok, 0dBuV (for most people these days) is 1uV p.d. or loaded or terminated or however you or your generator; /archives//html/Amps/2006-07/msg01293.html (9,140 bytes)
35. [Amps] Alpha power down question (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Sat, 29 Jul 2006 22:38:03 +0700; Today, with KH8SI a nice signal, Murphy came to visit. The inner of the RCA input jack on my Alpha 78 disintegrated, age? abuse? Changed it, no problem but noticed something in the process. With all; /archives//html/Amps/2006-07/msg01301.html (7,023 bytes)
36. [Amps] Options (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Sat, 05 Aug 2006 12:45:43 +0700; Start with an assumption. You have a quantity, i.e. more than 10, Eimac 8930's (4CX350R some say) with bases and teflon chimneys. Tubes are unknown condition but were removed from service a couple of; /archives//html/Amps/2006-08/msg00197.html (7,002 bytes)
37. [Amps] Shaded pole motor speed (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Wed, 23 Aug 2006 09:56:04 +0700; For some time now I have been thinking about ways to improve the airflow through the tubes in my amplifiers. I have a total of four amps, a 30L1, two Alpha 78's and a Henry 2K classic. In all cases I; /archives//html/Amps/2006-08/msg00620.html (7,589 bytes)
38. Re: [Amps] Shaded pole motor speed (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Thu, 24 Aug 2006 20:12:28 +0700; Thanks for all the interesting replies on this. I have had a quick mess with a variac. Motor starts at about 70 volts and speed seems to stabilise about 90 to 95 volts. It's a 110 volt motor so I onl; /archives//html/Amps/2006-08/msg00639.html (10,060 bytes)
39. [Amps] Wind! In series or parallel? (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Fri, 25 Aug 2006 09:28:36 +0700; Wind as in air. The more I think about moving this stuff the more I realise I just don't yet follow. Tube specs for 1 tube state 9cfm as an example. 2 tubes operating together need 18cfm, right? or s; /archives//html/Amps/2006-08/msg00643.html (6,470 bytes)
40. Re: [Amps] Need Japan Radio Plate Transformer Info (score: 1): Author: Martin Sole <msole@loxinfo.co.th>; Date: Fri, 01 Sep 2006 16:39:28 +0700; And... The cooling system, if AC, is most probably designed for 50Hz so should run 20% faster giving hopefully more cooling for the extra power that those extra volts will now get you. Serendipitous; /archives//html/Amps/2006-09/msg00005.html (7,600 bytes)

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