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References: [ +from:toesonnose@hawaii.rr.com: 30 ]

Total 30 documents matching your query.

1. Re: [Amps] MLA 2500 (score: 1)
Author: <toesonnose@hawaii.rr.com>
Date: Tue, 06 May 2008 20:13:31 -0500
It sounds like a tube going south. To find out for sure have him pull one tube at a time and operating on 1 tube (will work) untill he finds the supspect tube. Then once found hold the tube up side d
/archives//html/Amps/2008-05/msg00069.html (6,814 bytes)

2. [Amps] RE GI7B issues (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Tue, 9 Sep 2008 15:08:29 -1000
What is the plate idling current? I had one of them do the same thing but the idling current was way too high. Bias voltage should be between 25-32V after I set my bias voltage to 27V I have been usi
/archives//html/Amps/2008-09/msg00100.html (6,611 bytes)

3. [Amps] Dentron MLA-2500 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Sun, 3 May 2009 12:08:14 -1000
Aloha All, I have a MLA-2500 that I have done a tube swap to the Russian GI-7B. All was in good working order for over 2 years until I decided to build a airbox around the tubes and had the Watt mete
/archives//html/Amps/2009-05/msg00004.html (7,066 bytes)

4. [Amps] MLA-2500 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Tue, 19 May 2009 10:25:20 -1000
I have a problem with my Dentron MLA-2500 I think it is the transformer. I have rebuilt the HV section with all new parts and it has 2250V until I put tubes in then it eats one of the 20ohm resistors
/archives//html/Amps/2009-05/msg00125.html (7,453 bytes)

5. [Amps] RE MLA-2500 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Tue, 19 May 2009 15:10:02 -1000
After advise of checking the softstart relays I removed the softstart board and rewired up the amp with out it. All I got was a big bang and a blown glitch resistor and all the diodes in the doubler
/archives//html/Amps/2009-05/msg00128.html (6,915 bytes)

6. [Amps] Mla2500 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Tue, 19 May 2009 17:01:14 -1000
It does it with new tubes installed and the known good tubes. I have converted it to GI-7B russian tubes and I have 3 pairs one pair I have used for 3 years and 2 spare sets of new ones. Roland AH6RR
/archives//html/Amps/2009-05/msg00130.html (6,751 bytes)

7. [Amps] Ameritron AL-572 Problems (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Wed, 8 Jul 2009 10:59:56 -1000
Aloha All, I have a Ameritron AL-572 that goes instantly into Transmit as soon as I turn it to Operate and the LED lights up But there is no output and no RX Input SWR is Very High and the relay is f
/archives//html/Amps/2009-07/msg00134.html (6,499 bytes)

8. [Amps] AL-572 Problems Solved (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Wed, 8 Jul 2009 15:49:27 -1000
Aloha all thanks for the reply's I found the problem it was a diode that is in the keying line and it was shorted. It did not matter if there was anything plugged into the Rely jack it would key. Rep
/archives//html/Amps/2009-07/msg00135.html (6,447 bytes)

9. [Amps] Harris Plate Transformer Rating (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Wed, 22 Jul 2009 21:06:36 -1000
Aloha All, I have just aquired a Harris plate transformer from a RF-103 amp. Does anyone know the rating of this transformer? Is it 3500V @ 1.5 amps? or 3000V @ 1.5 amps. I am going to use this trans
/archives//html/Amps/2009-07/msg00301.html (6,549 bytes)

10. [Amps] Henry 2KD-5 10 Meter mod (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Thu, 12 Nov 2009 13:50:06 -1000
Hello All, I have just bought a Henry 2KD-5 that does not have the 10 meter mod done to it. It does have the 10M input coil bit in the instructions I downloaded it states to change L2 to the one supp
/archives//html/Amps/2009-11/msg00173.html (7,244 bytes)

11. [Amps] Henry 2KD-5 10M Mod Help (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Sun, 15 Nov 2009 10:36:06 -1000
I sent this a couple of days ago and now that I am getting emails again I am resending it. Hello All, I have just bought a Henry 2KD-5 that does not have the 10 meter mod done to it. It does have the
/archives//html/Amps/2009-11/msg00180.html (6,803 bytes)

12. [Amps] High Voltage wire (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Tue, 1 Dec 2009 11:56:26 -1000
Aloha All, I am looking for about 2 ft of High voltage wire for my Henry 2KD-5 amp the stuff on my amp is so stiff and brittle one broke while I was changing the power cord. Does anyone have some the
/archives//html/Amps/2009-12/msg00008.html (6,526 bytes)

13. Re: [Amps] High Voltage Wire (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Tue, 1 Dec 2009 16:12:33 -1000
Thanks for all the replies. I found some Rowe High Voltage Cable AWM 3239 16 AWG 30KVDC for $12.00 for 18ft Surplus Sales of Nebraska sells the same stuff for $9.80 a foot. It should be just right lo
/archives//html/Amps/2009-12/msg00024.html (7,783 bytes)

14. [Amps] Excessive Plate Voltage Henry 2KD-5 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Sat, 12 Dec 2009 12:14:12 -1000
Aloha All, I have a Henry 2KD-5 that has been sitting for a few years and after doing some repairs and tube replacement I turned it on and the plate voltage went to 4000V before I could turn it off.
/archives//html/Amps/2009-12/msg00307.html (6,745 bytes)

15. Re: [Amps] Excessive Plate Voltage Henry 2KD-5 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Sat, 12 Dec 2009 15:07:46 -1000
Aloha Val, Thanks for the reply. The repairs I did were replace the power cord hooked-up for 220V, all the High-Voltage wire as the old was dry and cracked. Some of the bleeder resistors had some bad
/archives//html/Amps/2009-12/msg00308.html (10,698 bytes)

16. [Amps] Henry 2KD-5 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Fri, 25 Dec 2009 06:22:51 -1000
Aloha All & Merry Christmas, Well I rebuilt the HV filter cap bank with new caps and bleeder resistors after the failure I had and I report the amp is doing fine now. There was a bad bleeder resistor
/archives//html/Amps/2009-12/msg00535.html (6,997 bytes)

17. [Amps] Blower for Henry 2KD-5 (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Sun, 7 Feb 2010 19:58:03 -1000
Hello All, I need to replace the blower in my Henry 2KD-5 as it is so noisey it is driving me nuts. The one in there now is loose/worn out it has too much slop on the motor shaft. The blower is a How
/archives//html/Amps/2010-02/msg00219.html (7,193 bytes)

18. [Amps] Henry 2KD-5 HV Drop (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Thu, 11 Feb 2010 10:38:51 -1000
I have a Henry 2KD-5 that when I turn it on the voltage is 3100V but then it drops to 2750V in about 1/2 minute. It seems to work fine as I get 1300+ Watts out. I did replace the HV filter caps and B
/archives//html/Amps/2010-02/msg00319.html (7,624 bytes)

19. Re: [Amps] New High Efficiency 3-500Z plate caps (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Fri, 2 Jul 2010 06:31:52 -1000
Well they have them on fleabay for $80 a pair. OUCH but maybe they can sell them to guys with amps like this. http://cgi.ebay.com/5-3-500Z-AC-MOBILE-AMPLIFIER-/330446008745?cmd=ViewItem&pt=LH_Default
/archives//html/Amps/2010-07/msg00030.html (8,915 bytes)

20. [Amps] Tube rebuilding (score: 1)
Author: "Roland AH6RR" <Toesonnose@hawaii.rr.com>
Date: Tue, 6 Jul 2010 12:33:16 -1000
It looks like ECONCO rebuilds 3CX1200a7's and 3CX1500H3/D3 (?) so why not give them a try cant hurt. Roland AH6RR _______________________________________________ Amps mailing list Amps@contesting.com
/archives//html/Amps/2010-07/msg00066.html (6,246 bytes)

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