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Total 62 documents matching your query.

1. [Amps] SB-200 (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Wed, 8 Feb 2012 18:33:44 -0800
Hi All. I have a SB-200 and it developed a problem in the last week or so. When tuning up on 40, the Load cap is all the way meshed and the Tune cap is about 50% meshed. It puts out about 400 watts o
/archives//html/Amps/2012-02/msg00063.html (7,408 bytes)

2. Re: [Amps] SB-200 (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Wed, 8 Feb 2012 21:38:10 -0800
Hi Vic I checked that and even pushed them in a little so I could see them move out a bit when the switch moved under them. Thanks and 73 Tom W7WHY Take a very close look at the bandswitch contacts t
/archives//html/Amps/2012-02/msg00067.html (8,102 bytes)

3. Re: [Amps] SB-200 (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Thu, 9 Feb 2012 19:28:07 -0800
Gonna pull the amp out tomorrow and check those out. Thanks for all the stuff to look for. 73 Tom W7WHY My vote is for the grid resistor and cap W5GHZ _______________________________________________
/archives//html/Amps/2012-02/msg00085.html (7,337 bytes)

4. Re: [Amps] 3-500 to 4-250 tube conversion (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Thu, 16 Feb 2012 09:29:53 -0800
6 3-500's?? What the heck band is this made for? 73 Tom W7WHY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-02/msg00201.html (8,189 bytes)

5. [Amps] AL-811H (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Sun, 26 Feb 2012 15:56:23 -0800
On the 3830 contest reflector someone posted a comment that "The AL-811H has a know problem of the parasictic chokes burning up on 10 meters." Is that a true fact on those amps? 73 Tom W7WHY ________
/archives//html/Amps/2012-02/msg00271.html (6,449 bytes)

6. Re: [Amps] AL-811H (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Sun, 26 Feb 2012 16:12:49 -0800
Thanks for the info. I have a friend here who has one about a year old and was wondering about that. 73 Tom W7WHY The newer ones have a whole different suppressor scheme than the older ones. if this
/archives//html/Amps/2012-02/msg00272.html (7,409 bytes)

7. Re: [Amps] 9 x 3-500Z Glass Glowing tubes (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Mon, 27 Feb 2012 13:39:23 -0800
Hah - only $3500. Don't see a bandswitch on it :-) 73 Tom W7WHY Item number.200719861024 Just when you thought six was bad enough ! _______________________________________________ Amps mailing list A
/archives//html/Amps/2012-02/msg00298.html (10,111 bytes)

8. Re: [Amps] Buying Stolen Tubes? (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Wed, 14 Mar 2012 09:39:26 -0700
Back a few years ago, a ham friend of mine owned a bar in Port Orford, OR. I was there when he swapped a brand new 4-1000 for a bottle of whiskey. I imagine that went on quite a bit in the military :
/archives//html/Amps/2012-03/msg00177.html (8,714 bytes)

9. Re: [Amps] SB 200 problem (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Sun, 6 May 2012 08:04:35 -0700
I found on my SB-200, sometimes the switch needs cleaning. Give it a shot of cleaner and see if that helps. 73 Tom W7WHY ...just be aware that germanium is very sensitive to thermal shock during sold
/archives//html/Amps/2012-05/msg00218.html (8,526 bytes)

10. Re: [Amps] DRAKE L4B ON EBAY (score: 1)
Author: Tom Osborne <w7why@frontier.com>
Date: Tue, 05 Jun 2012 12:07:37 -0700
Yes,off eBay. That way they don't have to pay the final value fees. 73 Tom W7WHY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mail
/archives//html/Amps/2012-06/msg00022.html (7,499 bytes)

11. Re: [Amps] DRAKE L4B ON EBAY (score: 1)
Author: Tom Osborne <w7why@frontier.com>
Date: Wed, 06 Jun 2012 11:06:12 -0700
You never know about those auctions. I saw a 'plain Jane' FT-101EE go for $550. That is also hard to believe. I guess if you have 2 guys with more money than sense bidding it can go pretty high. 73 T
/archives//html/Amps/2012-06/msg00030.html (8,367 bytes)

12. Re: [Amps] filament instant heating query / simple remedy (score: 1)
Author: Tom Osborne <w7why@frontier.com>
Date: Sun, 17 Jun 2012 18:41:42 -0700
And it just gets totally BORING!!! 73 Tom W7WHY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2012-06/msg00236.html (8,075 bytes)

13. Re: [Amps] filament instant heating query / simple remedy (score: 1)
Author: Tom Osborne <w7why@frontier.com>
Date: Tue, 19 Jun 2012 10:33:09 -0700
HI Carl Don't know, but how many does it take to change a lightbulb? "How many list members does it take to change a light bulb? One to change the light bulb and to post that the light bulb has been
/archives//html/Amps/2012-06/msg00279.html (11,118 bytes)

14. Re: [Amps] latest amplifier wonder (score: 1)
Author: Tom Osborne <w7why@frontier.com>
Date: Fri, 06 Jul 2012 09:19:24 -0700
I see it doesn't have a load cap. That's interesting! 73 Tom W7WHY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/a
/archives//html/Amps/2012-07/msg00036.html (7,532 bytes)

15. Re: [Amps] latest amplifier wonder (score: 1)
Author: Tom Osborne <w7why@frontier.com>
Date: Fri, 06 Jul 2012 12:45:07 -0700
HI Ian It looks like it only has a 10 meter coil in it. Must be a serious 10 meter operator :-) 73 Tom W7WHY _______________________________________________ Amps mailing list Amps@contesting.com http
/archives//html/Amps/2012-07/msg00048.html (8,383 bytes)

16. Re: [Amps] Antennae (?) (score: 1)
Author: Tom Osborne <w7why@frontier.com>
Date: Wed, 11 Jul 2012 19:11:00 -0700
That would make a good article for QST April issue. 73 Tom W7WHY _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amp
/archives//html/Amps/2012-07/msg00166.html (7,634 bytes)

17. Re: [Amps] Dedicated RF (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Sat, 28 Jul 2012 08:55:52 -0700
If someone does it right they'll make a ton of money. Maybe even a kit? 73, Bill W6WRT _______________________________________________ They sure sold a lot of those SB-200's and SB-220's. They were a
/archives//html/Amps/2012-07/msg00334.html (7,433 bytes)

18. Re: [Amps] Dedicated RF / tube query (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Sat, 4 Aug 2012 14:08:25 -0700
Hi Dan, Also I'm curious about the rationale for using two little puppies in parallel instead of a single 3CX1500A7/8877 tube...it sounds like you have given this key decision a lot of thought? Leigh
/archives//html/Amps/2012-08/msg00098.html (7,455 bytes)

19. Re: [Amps] Can some explain this curious eBay auction (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Wed, 22 Aug 2012 08:57:07 -0700
I once listed an AM radio on eBay (just like the one in the Waltons TV series) for a customer. He wanted $400 for it. It had mouse turds under the chassis and I mentioned in the listing that the wiri
/archives//html/Amps/2012-08/msg00346.html (8,272 bytes)

20. Re: [Amps] Multi-Amp w/ Power Combiners (score: 1)
Author: "Tom Osborne" <w7why@frontier.com>
Date: Thu, 23 Aug 2012 08:33:42 -0700
Yes, they used 2 Heathkit mobile KW amps. The used phasing lines to combine the 2 outputs together. 73 Tom W7WHY years ago there was an article in QST I believe, using a pair of Heathkit compact kilo
/archives//html/Amps/2012-08/msg00362.html (7,719 bytes)

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