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Total 16 documents matching your query.

1. [Amps] Henry 3K-A (score: 1): Author: MWapner@Vetronix.com (Mike Wapner); Date: Sat, 16 Mar 2002 13:08:44 -0800; I have the opportunity to purchase a Henry 3K-A. The following grid and plate currents and power out were measured. Can anyone tell me if these are "normal" or nominal and if the tubes (3-500Z's) app; /archives//html/Amps/2002-03/msg00371.html (8,040 bytes)
2. [Amps] Henry 3K-A (score: 1): Author: w5na@megagate.com (J. Leon Pringle, Jr and Audrey S. Pringle); Date: Sat, 16 Mar 2002 16:05:02 -0600; Mike: With 3K-A properly loaded (280 ma on grid and 800 ma of plate) per paragraph 3.3 of manual, output should be 1000+ on 80, 75, 40, 20, 15 and 10 meters. Your readings on output seem low to what; /archives//html/Amps/2002-03/msg00372.html (9,249 bytes)
3. [Amps] Henry 3K-A (score: 1): Author: 2@mail.vcnet.com (Richard); Date: Sat, 16 Mar 2002 15:39:12 -0800; ? The 3K-A is the only Ham amplifier I know of with a 2500W CCS anode supply. Normal full throttle is c. 2k out. It is also a good performer on a 20a, 120v outlet -- provided one tunes the beast up; /archives//html/Amps/2002-03/msg00376.html (9,251 bytes)
4. [Amps] Henry 3K-A (score: 1): Author: W4EF@dellroy.com (Mike); Date: Sun, 17 Mar 2002 14:38:19 -0800; What is the anode voltage in the CW and SSB positions? These numbers seem about right for a c. 2500VDC anode supply (SSB position), but would be somewhat low for a c. 3500 VDC anode supply. Mike, W4E; /archives//html/Amps/2002-03/msg00384.html (9,143 bytes)
5. [Amps] Henry 3K-A (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 18 Mar 2002 07:35:46 -0800; My experience with the 3K-A using a 240V line input is >>1500W A0 output on all bands with 100-120W drive. Never made any attempt to measure IMD, though... Your data indicated "1000+" output, but you; /archives//html/Amps/2002-03/msg00396.html (10,539 bytes)
6. [Amps] Henry 3K-A (score: 1): Author: 2@mail.vcnet.com (Richard); Date: Mon, 18 Mar 2002 11:04:47 -0800; ? We ain't supposed to talk about that, because then people would realize that there are big boys who run somewhat more than 1400w during contests and DX pileups. When I was running the 20db tetrode; /archives//html/Amps/2002-03/msg00402.html (8,313 bytes)
7. [Amps] Henry 3K-A (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 18 Mar 2002 11:13:19 -0800; air back in the late 1970's it picked up 17dB over a 100W exciter and people would ask about that sometimes. I always attributed it to propagation changes. amps. Got tired of all the knob cranking (; /archives//html/Amps/2002-03/msg00404.html (9,233 bytes)
8. [Amps] Henry 3K-A (score: 1): Author: 2@mail.vcnet.com (Richard); Date: Mon, 18 Mar 2002 11:52:36 -0800; ? One guy called me a damn liar because "no Ham would ever admit to running one of those". ? I attributed my signal to a 562w filament transformer. An incredible mechanical design. For an AB1 grid-d; /archives//html/Amps/2002-03/msg00405.html (9,546 bytes)
9. [Amps] Henry 3K-A (score: 1): Author: w6ru@bak.rr.com (Terry Gaiser); Date: Mon, 18 Mar 2002 14:41:28 -0800; 4K-Ultra has Bird wattmeter with a FS of 2500 watts. I would think this IS a type of relative output power indicator. Terry W6RU; /archives//html/Amps/2002-03/msg00406.html (7,750 bytes)
10. [Amps] Henry 3K-A (score: 1): Author: stevek@jmr.com (Steve Katz); Date: Mon, 18 Mar 2002 14:55:53 -0800; Yeah, yeah...my 4K-U, purchased used in '78 or so, did not come with the Bird coupler or slugs...the center meter looked real cool but had nothing to drive it. I was only recently made aware that Hen; /archives//html/Amps/2002-03/msg00407.html (8,618 bytes)
11. [Amps] Henry 3K-A (score: 1): Author: w6ru@bak.rr.com (Terry Gaiser); Date: Mon, 18 Mar 2002 15:27:56 -0800; FWIW The Bird element/sample section in the 4K-Ultra is a custom piece that Bird has not made or supported for some years now. As I recall the amplifier output connector was also part of the assembly; /archives//html/Amps/2002-03/msg00410.html (9,765 bytes)
12. [Amps] Henry 3K-A (score: 1): Author: philk5pc@tyler.net (Phil Clements); Date: Mon, 18 Mar 2002 21:30:37 -0600; I have had two 4-K Ultras. The Bird line section and the front panel meter are very accurate. One I had to completely overhaul from the chassis up. I used some hot carrier diodes to repair the Bird l; /archives//html/Amps/2002-03/msg00412.html (8,602 bytes)
13. [Amps] Henry 3K-A (score: 1): Author: Joe Isabella <n3ji@yahoo.com>; Date: Thu, 4 Mar 2004 06:15:22 -0800 (PST); Funny you mention the 3K-A, Rich. I may be picking one up this weekend. Having found very little on the 'net using Google, I wonder if anyone here has any suggestions (mods, upgrades, etc). Also, wha; /archives//html/Amps/2004-03/msg00044.html (8,560 bytes)
14. Re: [Amps] Henry 3K-A (score: 1): Author: R.Measures <r@somis.org>; Date: Fri, 5 Mar 2004 00:14:15 -0800; *? 2500W CCS. Easily enough steam for a pair of 8877s. Useful mods are: glitch-R in HV Positive circuit, high-speed switching, glitch diodes across meter movements, lower VHF-Rp suppressors, replace; /archives//html/Amps/2004-03/msg00052.html (8,261 bytes)
15. [Amps] Henry 3K-A (score: 1): Author: "K6QD" <k6qd@cox.net>; Date: Fri, 11 Dec 2009 14:29:26 -0800; Does anyone know the vendor P/N of the main circuit breaker in the 3K-A. I believe it is a "Square-D", but there is no I.D. on it. It is a 2-pole 30A breaker. Henry Radio still has a few left, but th; /archives//html/Amps/2009-12/msg00300.html (6,269 bytes)
16. Re: [Amps] Henry 3K-A (score: 1): Author: "Dave Harmon" <k6xyz@sbcglobal.net>; Date: Fri, 11 Dec 2009 17:05:28 -0600; Hi Mike.....how expensive from Henry is it?? I would think that anything up to $50 would be ok considering that it has to fit in a restricted area. Regards Dave Harmon K6XYZ[at]sbcglobal[dot]net Sper; /archives//html/Amps/2009-12/msg00301.html (7,282 bytes)

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