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41. [Amps] Any Henry experts on the list? REPOST (score: 1)
Author: chas <chasm@texas.net>
Date: Thu, 19 Feb 2009 07:09:21 -0600
This frequency agile amp problem is not getting simpler that I can tell - I know now that I really do NOT want a solid state amp because the FETs like to blow out unless they have really good protect
/archives//html/Amps/2009-02/msg00556.html (7,564 bytes)

42. [Amps] Henry expert on list? (score: 1)
Author: chas <chasm@texas.net>
Date: Wed, 18 Feb 2009 19:15:20 -0600
This frequency agile amp problem is not getting simpler that I can tell - I know now that I really do NOT want a solid state amp because the FETs like to blow out unless they have really good protect
/archives//html/Amps/2009-02/msg00564.html (7,956 bytes)

43. [Amps] Alpha 374A ? (score: 1)
Author: chas <chasm@texas.net>
Date: Sun, 02 Aug 2009 16:23:38 -0500
any owners/users of Alpha 374A amps on the list? I have a couple of questions. thanks chas k5dam _______________________________________________ Amps mailing list Amps@contesting.com http://lists.con
/archives//html/Amps/2009-08/msg00027.html (6,732 bytes)

44. [Amps] Alpha 374A ? (score: 1)
Author: chas <chasm@texas.net>
Date: Sun, 02 Aug 2009 20:03:51 -0500
The 374A being a typical tube amp, I assume that it is NOT going to be capable of tuning in the MARS portions of the various bands to include 30 and 60meters without a lot of effort from my Dentron M
/archives//html/Amps/2009-08/msg00032.html (7,459 bytes)

45. Re: [Amps] Alpha 374A ? (score: 1)
Author: chas <chasm@texas.net>
Date: Sun, 02 Aug 2009 23:07:42 -0500
please note my use of MARS in my question. MARS can work most freq at up to 500W, or higher in case of EMCOMM of course, use the least needed to accomplish the mission. thanks moving on. sigh chas AA
/archives//html/Amps/2009-08/msg00043.html (7,807 bytes)

46. [Amps] Alpha 374A (score: 1)
Author: chas <chasm@texas.net>
Date: Sun, 02 Aug 2009 14:51:26 -0500
any owners/users of Alpha 374A amps on the list? I have a couple of questions. thanks chas k5dam _______________________________________________ Amps mailing list Amps@contesting.com http://lists.con
/archives//html/Amps/2009-08/msg00058.html (6,435 bytes)

47. Re: [Amps] Henry 3K-A "gotchas" (score: 1)
Author: chas <chasm@texas.net>
Date: Tue, 04 Aug 2009 02:08:58 -0500
I know that I enjoyed it. it is now archived in my SOMEDAY!! file under the subheading of (a decent amp). thanks Phil -- chasm@texas.net k5dam Houston, TX <a href='http://militarysignatures.com'> <im
/archives//html/Amps/2009-08/msg00076.html (8,023 bytes)

48. Re: [Amps] [Heathkit] The SB-220 (score: 1)
Author: chas <chasm@texas.net>
Date: Sat, 22 Aug 2009 19:01:00 -0500
I want to add an "Attaboy LON!" here because I personally own one of his SB220 mod jobs and it is a pure pleasure to operate. I just wish that I could use the SSB side of the switch but without repla
/archives//html/Amps/2009-08/msg00395.html (8,902 bytes)

49. Re: [Amps] [Heathkit] The SB-220 (score: 1)
Author: chas <chasm@texas.net>
Date: Sat, 22 Aug 2009 20:22:51 -0500
sorry, I am really bad in writing... I expect people to read my mind I guess <G> no, just wanted to say kudos to Lon for doing a superb job of modifying and upgrading my specimen. It might now work l
/archives//html/Amps/2009-08/msg00401.html (9,349 bytes)

50. Re: [Amps] SB-220: 1,800 Watts Output (score: 1)
Author: chas <chasm@texas.net>
Date: Mon, 30 Nov 2009 10:12:34 -0600
yup one more time, is it even possible to put a third tube with its circuitry, caps, etc into the 220 case??? I know that I have a Dahl txfrmr to handle three tubes but doubt that you could fit an ad
/archives//html/Amps/2009-11/msg00304.html (9,325 bytes)

51. [Amps] "Stacking" power supplies?? how? (score: 1)
Author: chas <chasm@texas.net>
Date: Mon, 14 Dec 2009 09:51:35 -0600
How do I connect three 30A power supplies together so as to obtain 90A ? I would assume it would be parallel but I cannot believe it is as simple as daisy chaining three auto batteries - pos to pos t
/archives//html/Amps/2009-12/msg00319.html (7,883 bytes)

52. [Amps] [Fwd: Cooling fan OEM for the SGC Cube???] (score: 1)
Author: chas <chasm@texas.net>
Date: Tue, 19 Jan 2010 00:11:49 -0600
HIGH POWER 500 WATT PEP OR CW CONTINUOUS OPERATION FAN KIT - FOR SG-500 $220.00 Catalog #51-82 is there any ham built equivalent to this fan kit? this is a bit steep, in my opinion. I could build thi
/archives//html/Amps/2010-01/msg00254.html (7,034 bytes)

53. [Amps] Source for large purchase of toroids? (score: 1)
Author: chas <chasm@texas.net>
Date: Fri, 22 Jan 2010 22:17:38 -0600
Does anyone have a "best" (least expensive) source for purchase in bulk of toroids, etc??? thanks 73 chas k5dam Houston, TX _______________________________________________ Amps mailing list Amps@cont
/archives//html/Amps/2010-01/msg00279.html (7,795 bytes)

54. Re: [Amps] Source for large purchase of toroids? (score: 1)
Author: chas <chasm@texas.net>
Date: Mon, 25 Jan 2010 22:58:00 -0600
ok, micrometals material codes are completely different from Fair-Rite. so, what does Fair-Rite #31 = in MMetals? ditto question of F-R #43 = in MMetals?? which are ceramic ferrite and which are iron
/archives//html/Amps/2010-01/msg00339.html (9,024 bytes)

55. Re: [Amps] Source for large purchase of toroids? (score: 1)
Author: chas <chasm@texas.net>
Date: Tue, 26 Jan 2010 13:23:34 -0600
ahh. thanks for the intelligent suggestion. 73 chas -- chasm@texas.net k5dam Houston, TX <a href='http://militarysignatures.com'> <img src='http://militarysignatures.com/signatures/member14013.png' b
/archives//html/Amps/2010-01/msg00349.html (9,003 bytes)

56. [Amps] [Fwd: Source for large purchase of toroids? (score: 1)
Author: chas <chasm@texas.net>
Date: Tue, 26 Jan 2010 14:12:03 -0600
this is great info which I really appreciate, Jim Mouser is probably the closest to my QTH and this url http://tinyurl.com/yd94aws shows F-Rite's part numbers for HF or mix 31 toroids. I have not det
/archives//html/Amps/2010-01/msg00354.html (9,223 bytes)

57. Re: [Amps] QRO Questions (score: 1)
Author: chas <chasm@texas.net>
Date: Fri, 05 Feb 2010 14:06:10 -0600
Don, I had gone way beyond that and have always assumed that they borrow on Broadcast engineering "megawatt" equipment. fwiw chas -- chasm@texas.net k5dam Houston, TX ________________________________
/archives//html/Amps/2010-02/msg00124.html (8,763 bytes)

58. Re: [Amps] 120 cycle hum from Henry 2K-4 (score: 1)
Author: chas <chasm@texas.net>
Date: Sun, 21 Feb 2010 20:25:59 -0600
idle curiosity what does a 120cps hum sound like? is that G sharp over middle C ??? <G> chas k5dam -- chasm@texas.net k5dam Houston, TX <a href='http://militarysignatures.com'> <img src='http://milit
/archives//html/Amps/2010-02/msg00629.html (10,735 bytes)

59. Re: [Amps] unbuilt SB-220 on Ebay.... WHY? (score: 1)
Author: chas <chasm@texas.net>
Date: Tue, 30 Mar 2010 11:23:32 -0500
WHY?!? would anyone want to buy a brand new SB220 without mods for more than $700? to make it work well, you need to replace the txfmr with a Peter Dahl or equivalent then put in all the mods which M
/archives//html/Amps/2010-03/msg00876.html (8,777 bytes)

60. Re: [Amps] SB-220 Fan Blade? (score: 1)
Author: chas <chasm@texas.net>
Date: Wed, 14 Jul 2010 13:35:41 -0500
I know that Ameritron "modeled" an amp or two on the HK 200 series -- I wonder if they carried it so far as to use the same style of fan (motor and blade) as the HK??? it might be worth a call to Ame
/archives//html/Amps/2010-07/msg00116.html (7,693 bytes)

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