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1. [Amps] Henry 2KD Classic (score: 1): Author: ea3in@yahoo.com (Marcel Jorba); Date: Fri, 8 Nov 2002 23:47:36 -0800 (PST); Hi, I now have a Henry 2KD Classic. It seems to be in perfect state. I'm a bit disapointed after it delivers only about 600w. I expected to be able to put out about 1100-1200. On the same AC line, sa; /archives//html/Amps/2002-11/msg00144.html (7,508 bytes)
2. [Amps] Henry 2KD Classic (score: 1): Author: 2@vc.net (Rich); Date: Sat, 9 Nov 2002 02:59:22 -0800; You are not driving the tubes enough. Either your SWR is not low enough to allow the radio to develop full output, or you don't have the needed 130w drive. To make the SWR low enough, it takes a tun; /archives//html/Amps/2002-11/msg00146.html (8,375 bytes)
3. [Amps] Henry 2KD Classic (score: 1): Author: jhurry@austin.rr.com (Dudley Hurry); Date: Sat, 9 Nov 2002 11:34:27 -0600; John, Rich is right, sounds like you are not driving it hard enough.. I owned one of those, and provided that you can give it enough drive, then it will put out what you are expecting.. You might wan; /archives//html/Amps/2002-11/msg00148.html (9,583 bytes)
4. [Amps] Henry 2KD Classic (score: 1): Author: ea3in@yahoo.com (Marcel Jorba); Date: Sat, 9 Nov 2002 13:16:13 -0800 (PST); The exciter is TS930 with internal tuner. I will make tests again activating it. Thanks to everybody. Tomorrow a local ham will come with an IC775 wich is able tu put 200w out. We will try with 120-1; /archives//html/Amps/2002-11/msg00151.html (10,962 bytes)
5. [Amps] Henry 2KD Classic (score: 1): Author: 2@vc.net (Rich); Date: Sun, 10 Nov 2002 06:29:19 -0800; ** Re-Design the tuned input circuits for a Q of 2 - 3. A Q of less than that is ok with tube-type radios, but not solid-state radios. S-S radios need an SWR of /,1.2 - 1. - Henry Radio amp-design i; /archives//html/Amps/2002-11/msg00155.html (9,954 bytes)
6. [Amps] Henry 2KD Classic (score: 1): Author: ea3in@yahoo.com (Marcel Jorba); Date: Thu, 21 Nov 2002 11:26:38 -0800 (PST); I am still trying to see the maximum power I can reach with my ts930. Anyone knows how can I sitch the linear from 240V to 220V? How can I dismount the rear panel in a easy way to access the tranform; /archives//html/Amps/2002-11/msg00328.html (7,079 bytes)
7. [Amps] Henry 2KD Classic (score: 1): Author: w4nul@brightok.net (w4nul@brightok.net); Date: Thu, 21 Mar 2002 13:29:27 -0000; While I had the 2KD Classic opened up for other work I decided to look at the HV supply. I thought that the caps and resistors were a little on the weak side from all that I have seen here. I wonder; /archives//html/Amps/2002-03/msg00459.html (7,995 bytes)
8. [Amps] Henry 2KD Classic (score: 1): Author: 2@mail.vcnet.com (Richard); Date: Thu, 21 Mar 2002 07:09:54 -0800; ? I would check these potentials against a DMM with a x10 HV probe. The trouble could be in the metering scheme. - 20k-ohm makes much heat. Electrolytics do not tolerate heat well. I would go to a h; /archives//html/Amps/2002-03/msg00461.html (8,618 bytes)
9. [Amps] Henry 2KD Classic (score: 1): Author: Peter.Chadwick@zarlink.com (Peter Chadwick); Date: Thu, 21 Mar 2002 15:31:07 -0000; I'd add to that that if you hear a ticking noise from the caps, they're history, too - and in both cases, not very good history! Sometimes they tick as they break down inside. Where are the resistors; /archives//html/Amps/2002-03/msg00464.html (7,864 bytes)
10. [Amps] Henry 2KD Classic (score: 1): Author: R_Davis" <WD8JJA@arrl.net (R_Davis); Date: Thu, 21 Mar 2002 12:05:13 -0500; Do electolytics have a particular failure mode when they go bad over time? I assume that the dialectic is drying out and they just gradually loose capacity - lower uF's. Does the voltage rating decre; /archives//html/Amps/2002-03/msg00469.html (8,744 bytes)
11. [Amps] Henry 2KD Classic (score: 1): Author: bjk@ihug.co.nz (Barry Kirkwood); Date: Thu, 21 Mar 2002 18:40:45 -0000; All true. I had some that squeaked! Before I found out where the mouse was the electros died and took the rectifiers with them. 73 end Barry Kirkwood PhD ZL1DD Signal Hill Homestay 66 Cory Road Palm; /archives//html/Amps/2002-03/msg00475.html (8,772 bytes)
12. [Amps] Henry 2KD Classic (score: 1): Author: 2@mail.vcnet.com (Richard); Date: Thu, 21 Mar 2002 13:04:05 -0800; They typically lose C and/or the leakage current increases. When the leakage current increases, more internal heat is developed, which generates more leakage, which generates more heat, on and on an; /archives//html/Amps/2002-03/msg00479.html (8,045 bytes)
13. [Amps] Henry 2KD Classic (score: 1): Author: vk6apk@eon.net.au (Alek Petkovic); Date: Fri, 22 Mar 2002 07:10:39 +0800; G'day Bob, You might check the voltage divider resistor network in the hv metering circuit. The resistors may be getting tired and changing value as they warm up a bit thus giving you those variation; /archives//html/Amps/2002-03/msg00482.html (8,715 bytes)
14. [Amps] Henry 2KD Classic (score: 1): Author: Peter.Chadwick@zarlink.com (Peter Chadwick); Date: Fri, 22 Mar 2002 07:19:37 -0000; I don't know whether there's a correlation between physical size and life. I have a Sprague 32 mfD 450v electrolytic, manufactured in 1944. It hadn't been used for 40 years until I checked it out las; /archives//html/Amps/2002-03/msg00497.html (7,770 bytes)
15. [Amps] Henry 2KD Classic (score: 1): Author: wb4mnf@atl.org (wb4mnf); Date: Fri, 22 Mar 2002 21:59:48 -0500; Do not listen for ticking caps with remaining ear...; /archives//html/Amps/2002-03/msg00525.html (7,520 bytes)
16. [AMPS] Henry 2kd classic (score: 1): Author: steve@2cls.com (steveRiley); Date: Tue, 11 Sep 2001 22:15:05 -0400; sorry did not mean to piggy back on another topic. Hi All New to the list, so can someone explane. I have a Henry 2kd classic desktop amp. I have a problem when I put in a new set of 3-500z and it wa; /archives//html/Amps/2001-09/msg00208.html (7,463 bytes)
17. [AMPS] Henry 2KD classic (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 12 Sep 2001 07:55:25 -0400; Hi Steve, How do you know the amplifier is "taking off"? What are the symptoms? 73, Tom W8JI W8JI@contesting.com -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@contesting.com Adm; /archives//html/Amps/2001-09/msg00213.html (8,858 bytes)
18. [AMPS] Henry 2kd classic (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Wed, 12 Sep 2001 10:22:48 -0400; I'd just make it as big as I reasonably could, depending on plate current. There really isn't any reason to dissipate more than a couple percent of the output power in the resistor from I^2 R losses; /archives//html/Amps/2001-09/msg00218.html (9,118 bytes)
19. [AMPS] Henry 2kd classic (score: 1): Author: 2@vc.net (2); Date: Wed, 12 Sep 2001 09:57:16 -0700; // 4v out of 75v of G-K drive is "all over the place", Tom? - R. L. Measures, 805.386.3734, AG6K, www.vcnet.com/measures. end -- FAQ on WWW: http://www.contesting.com/FAQ/amps Submissions: amps@cont; /archives//html/Amps/2001-09/msg00220.html (9,144 bytes)
20. [AMPS] Henry 2kd classic (score: 1): Author: Mike" <W4EF@dellroy.com (Mike); Date: Thu, 13 Sep 2001 22:02:04 -0700; Yes, my inherited homebrew 811 amp uses something similar. As I believe you and I discussed before, the 811 circuit is a copy of the Collins 30L1 bias circuit. Any dowside risk to gutting the grid ca; /archives//html/Amps/2001-09/msg00240.html (11,205 bytes)

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