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References: [ +from:woodr90@gmail.com: 74 ]

Total 74 documents matching your query.

1. Re: [Amps] FW: Transformer Question (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Thu, 27 Feb 2020 14:10:45 -0600
Checked 1983 ARRL Handbook & it shows the 811 tubes with max voltage 1500vdc The power supply choke provides some voltage stabilization The non-choke PS are popular => cheaper to make, Less weight, L
/archives//html/Amps/2020-02/msg00132.html (8,325 bytes)

2. Re: [Amps] Monitor RF output on computer screen (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sat, 7 Mar 2020 11:38:30 -0600
http://www.telepostinc.com/lp100.html also found the ACOM director free software links but the M0 web site is not coming up SLOW https://www.m0yom.co.uk/ does it work well? https://www.arraysolutions
/archives//html/Amps/2020-03/msg00004.html (8,368 bytes)

3. [Amps] ALPHA 89 (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sat, 14 Mar 2020 17:32:47 -0500
I have Alpha 89 on test bench, it's an amp I've used for several years and decided to sell. On 40 meters the Alpha input SWR, using the Alpha LEDs about 1.2 to 1 The K3 reads 2.9 to 1 An outboard MFJ
/archives//html/Amps/2020-03/msg00047.html (7,120 bytes)

4. [Amps] LA100 tuner for input to amp (Not LP100) (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sat, 14 Mar 2020 17:37:29 -0500
A modified LA-100Pro It's not possible from the article to determine who the author is. Who wrote the article? is first Question. And if he's on list, still like the LA100 being used as tuned input??
/archives//html/Amps/2020-03/msg00048.html (6,805 bytes)

5. Re: [Amps] ALPHA 89 (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sat, 14 Mar 2020 19:15:32 -0500
Brad, Thanks, I did open up the input circuit area of the alpha and clean contacts on band switch. Everything "Looks" brand new. didn't go any further. will try the six foot length.. 73 W5AJ Robert M
/archives//html/Amps/2020-03/msg00050.html (9,012 bytes)

6. Re: [Amps] ALPHA 89 (score: 1)
Author: "Robert ." <woodr90@gmail.com>
Date: Sun, 15 Mar 2020 03:00:20 -0500
Thanks again I didn't have six footer made up, but longer one. Still coiled up, so not sure of length. K3 showed 1.4 !! Nice. I think I'm dealing with set of medical pulls on tubes. Still good output
/archives//html/Amps/2020-03/msg00052.html (10,324 bytes)

7. Re: [Amps] ALPHA 89 (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sun, 15 Mar 2020 14:28:05 -0500
The Alpha 89 uses same board one on input, one on output. Some resistors are different for different power levels. http://www.alpharfsystems.com/wp-content/uploads/2016/05/89_full_schematics. pdf Pow
/archives//html/Amps/2020-03/msg00061.html (11,269 bytes)

8. [Amps] AL82 bias (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sun, 15 Mar 2020 14:50:46 -0500
sri for BW, I find myself with time now to finish up several amp projects My DX chasing AL82 has blown bias it shows the zener diode as 301-2971 DIODE, ZENER, 7.5V, 1N2971A, DO-4,10W, STUD MOUNT $10.
/archives//html/Amps/2020-03/msg00062.html (6,324 bytes)

9. [Amps] DRAKE L4B (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Wed, 29 Apr 2020 00:25:36 -0500
cleaning up L4B posted few photos at http://w5aj.eqth.net/drake/drake.htm Observations: The air cooling / fan is anemic The plastic fan & metal hub can be rejoined with Gorilla EXPOXY Glue The undate
/archives//html/Amps/2020-04/msg00025.html (7,298 bytes)

10. [Amps] 3cx800 13.5Vac 3amp filament transformer (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Wed, 29 Apr 2020 19:59:19 -0500
Looking for recommendations of where/who to purchase 13.5Vac filament transformer story: Have several RS 12.6Vac rated 3Amps and those work fine for Single 3cx800 (measure 13.4Vdc) Now have project w
/archives//html/Amps/2020-04/msg00029.html (7,024 bytes)

11. Re: [Amps] DRAKE L4B (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Thu, 30 Apr 2020 13:08:35 -0500
Jay, et. El The L4B seen in photos was shipped to AGL Electronics around 1973 to 1974. Original owner was K5TM in Austin, TX The amp was boxed and stored for about 30 years, that would have been arou
/archives//html/Amps/2020-04/msg00031.html (9,201 bytes)

12. Re: [Amps] 3cx800 13.5Vac 3amp filament transformer (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sun, 10 May 2020 01:52:44 -0500
Thanks Jim. did same. Ordered #16 enameled coated wire for extra windings, which came in yesterday. 13.55Vac now with two tubes! The #16 was TIGHT FIT! Did take a few photos along the way for others
/archives//html/Amps/2020-05/msg00005.html (9,079 bytes)

13. [Amps] Harris RF103 (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Thu, 14 May 2020 21:13:28 -0500
Next project is Harris RF-103 amp. 3-1000 Tube Prior owner moved into location that it didn't fit.. Said it tunes manually fine but the auto tune only operated in one direction which sounds like driv
/archives//html/Amps/2020-05/msg00006.html (7,117 bytes)

14. [Amps] 4-65 Sockets (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Thu, 21 May 2020 17:18:10 -0500
Doing clean out (aka C19 cleanup) Two Sockets Believe these fit Eimac 4-65 tubes (maybe others) These have followed me for 40+ years now.. https://photos.app.goo.gl/dR92HUaJ36pgauWF6 FREE if cover co
/archives//html/Amps/2020-05/msg00041.html (6,541 bytes)

15. Re: [Amps] 4-65 Sockets (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Thu, 21 May 2020 22:20:46 -0500
Claimed and no longer available W5AJ Robert Midland, Texas From: Robert [mailto:woodr90@gmail.com] Sent: Thursday, May 21, 2020 5:18 PM To: amps@contesting.com Subject: 4-65 Sockets Doing clean out (
/archives//html/Amps/2020-05/msg00042.html (6,943 bytes)

16. [Amps] HB 4-400 amp (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Mon, 1 Jun 2020 20:38:46 -0500
few years ago, bought amp in progress (SK) that uses two x 4-400 tubes. The sockets (ceramic type) were mounted on bottom of chassis, no spacing If there were glass chimneys, those didn?t make it to
/archives//html/Amps/2020-06/msg00000.html (7,259 bytes)

17. Re: [Amps] HB 4-400 amp (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Tue, 2 Jun 2020 11:44:21 -0500
SK-400? interesting, the data sheet on 4-400 Tube didn't have that great info. THANKS! 73 W5AJ Robert Midland, Texas You need to read Eimac document SK-300A Air System Socket. It will give you the so
/archives//html/Amps/2020-06/msg00002.html (7,808 bytes)

18. [Amps] 3-500 eimac (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sun, 26 Jul 2020 13:03:01 -0500
I have SHORTED / BAD / NO RF Eimac tube $35 shipped anywhere in states Someone might want it for a lamp or desk display 73 W5AJ Robert Midland, Texas _______________________________________________ A
/archives//html/Amps/2020-07/msg00021.html (6,607 bytes)

19. Re: [Amps] Alpha 9500 questions (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Sun, 26 Jul 2020 13:33:03 -0500
Bob, The ONLY amp I've regretting selling was an Alpha, a 76A, modified with pair of 3CXP800s & HD (slightly higher voltage) Peter Dahl Xmer. Presently have Alpha 89 sitting in my shop waiting on $26
/archives//html/Amps/2020-07/msg00022.html (9,419 bytes)

20. [Amps] 3-500Z short / fix? (score: 1)
Author: "Robert" <woodr90@gmail.com>
Date: Mon, 27 Jul 2020 19:46:57 -0500
while repairing Zener diode - pulled two 3-500 Eimac tubes one had short (all five pins read zero ohms to any other of the five pins) took shorted tube to shop for a photo. sell tube as sample/light
/archives//html/Amps/2020-07/msg00028.html (7,033 bytes)

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