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Total 573 documents matching your query.

1. Re: [Amps] WTB: 800 watt-1KW amp (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Mon, 11 Jan 2010 19:19:25 -0800
Not sure a SB-230 is the right amp for a beginner. Now a SB-200 is! 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailm
/archives//html/Amps/2010-01/msg00083.html (13,164 bytes)

2. [Amps] Plate Chokes... Yet again... (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Mon, 11 Jan 2010 21:07:16 -0800
Well I just re-wound an Ameritron plate choke. Actually it was from a Heathkit SB-1000. It was an old style choke with the continuous winding scheme (rather than the staggered winding scheme) that ha
/archives//html/Amps/2010-01/msg00089.html (8,206 bytes)

3. Re: [Amps] Need #9 Allen wrench MUCHO (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Mon, 11 Jan 2010 21:09:09 -0800
That's why God made pictures.... And printers to print them to. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/l
/archives//html/Amps/2010-01/msg00090.html (10,327 bytes)

4. [Amps] Is this thing on? (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Tue, 12 Jan 2010 06:57:08 -0800
I've been trying to send postings with no luck. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-01/msg00095.html (6,794 bytes)

5. [Amps] Plate Chokes.... Yet Again.... (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Tue, 12 Jan 2010 07:00:32 -0800
Well I just re-wound an Ameritron plate choke. Actually it was from a Heathkit SB-1000. It was an old style choke with the continuous winding scheme (rather than the staggered winding scheme) that ha
/archives//html/Amps/2010-01/msg00096.html (8,211 bytes)

6. Re: [Amps] Plate Chokes.... Yet Again.... (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Tue, 12 Jan 2010 16:12:13 -0800
Nope! Thanks for the tip but that is not an issue here. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/
/archives//html/Amps/2010-01/msg00107.html (8,476 bytes)

7. Re: [Amps] which HV connector to use? (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Tue, 12 Jan 2010 20:56:04 -0800
MHV is what I'm using on my new 8877. They are rated for 5KV. They're a little expensive but keep your eye on EBay for them. 73 Jim W7RY _______________________________________________ Amps mailing l
/archives//html/Amps/2010-01/msg00123.html (12,042 bytes)

8. Re: [Amps] which HV connector to use? (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Tue, 12 Jan 2010 21:37:56 -0800
That's interesting Dick.... Take a look at the spec sheet.... http://www.hubersuhner.com/ie70/hs-p-rf-con-gr-series-mhv-td_en.pdf I guess I can't read... Unless 5 KV doesn't mean 5KV.... Perhaps...It
/archives//html/Amps/2010-01/msg00127.html (14,412 bytes)

9. Re: [Amps] (Perhaps) A plate choke too far ... (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Thu, 14 Jan 2010 08:43:25 -0800
What about this theory? See the lower part of the page. http://www.kk5dr.com/chokes.htm 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.
/archives//html/Amps/2010-01/msg00177.html (11,991 bytes)

10. Re: [Amps] Chimney's (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Thu, 14 Jan 2010 17:28:39 -0800
EBay is a great place to get small quantities of Teflon sheet. 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/li
/archives//html/Amps/2010-01/msg00186.html (9,204 bytes)

11. Re: [Amps] Source GU-84B fil xfmr (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Thu, 14 Jan 2010 18:19:39 -0800
Here's what I do. Use a transformer with higher filament voltage than needed. Then put a 100 to 150 Ohm 12.5 watt rheostat (pot) in series with the primary. Set the desired filament voltage with the
/archives//html/Amps/2010-01/msg00193.html (9,384 bytes)

12. Re: [Amps] HV connector (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Sat, 16 Jan 2010 14:46:55 -0800
Sheesh! Check out the prices! I'm using RG59 on my SHV connectors with 4KV of plate voltage. Haven't put the juice (technical term) to it yet but about to in the next few hours! 73 Jim W7RY _________
/archives//html/Amps/2010-01/msg00222.html (8,735 bytes)

13. Re: [Amps] KK5DR's ferrite loaded plate chokes. (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Sat, 16 Jan 2010 19:36:10 -0800
I just wound an ameritron look alike with #28. It's larger than they use. I have an original ameritron choke to compare with. I think they must use #29. My resistance was lower using #28 and it was l
/archives//html/Amps/2010-01/msg00225.html (9,038 bytes)

14. Re: [Amps] Source for large purchase of toroids? (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Sat, 23 Jan 2010 12:44:15 -0800
Agreed Dan! I use Mouser whenever I can. Rarely, there are some things they don't have. But their adding more lines all the time. I love their on line catalog and ordering process. I also love the pr
/archives//html/Amps/2010-01/msg00292.html (11,680 bytes)

15. [Amps] Panel Meters Wanted (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Sat, 23 Jan 2010 15:48:19 -0800
Looking for a couple of panel meters for an amplifier project. They need to be at least 3" wide and not more than 3.75" wide. I don't want the old style square or round meters. Prefer the newer Tripl
/archives//html/Amps/2010-01/msg00295.html (6,806 bytes)

16. [Amps] Meters Wanted Fulfiled! (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Sun, 24 Jan 2010 17:51:00 -0800
Thanks for all the offers on meters! I have found exactly what I was looking for. Some Simpson 3 1/2" units. New in the box. 73 Jim W7RY _______________________________________________ Amps mailing l
/archives//html/Amps/2010-01/msg00302.html (6,381 bytes)

17. Re: [Amps] Layout of tube (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Mon, 25 Jan 2010 17:36:50 -0800
Fans in series? How are you going to figure the airflow out? Just use a single BLOWER like 100% of the other amp builders use? What tube or tubes? 73 Jim W7RY ________________________________________
/archives//html/Amps/2010-01/msg00326.html (9,683 bytes)

18. Re: [Amps] Henry 2KD input SWR (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Mon, 25 Jan 2010 21:23:58 -0800
What are you using to measure the input SWR? 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-01/msg00334.html (8,204 bytes)

19. Re: [Amps] Layout of tube (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Mon, 25 Jan 2010 21:36:40 -0800
Hardly 2 fans in series. Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2010-01/msg00335.html (11,531 bytes)

20. Re: [Amps] Plate Choke Resonances (score: 1)
Author: James Colville <jimw7ry@gmail.com>
Date: Thu, 28 Jan 2010 18:10:37 -0800
What is the measured inductance? What sixe wire did you use? 73 Jim W7RY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/list
/archives//html/Amps/2010-01/msg00407.html (8,063 bytes)

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