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Total 54 documents matching your query.

1. [Amps] Re: Question about an old home-brew amp (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Tue, 6 Apr 2004 19:17:17 -0600
Oh, and I should add that it seems to have a green tag on it which indicates it was an item of salvage possibly from HP corp, in 1975. (which seems kind of strange given the homemade nature of the th
/archives//html/Amps/2004-04/msg00053.html (6,995 bytes)

2. [Amps] Question about an old home-brew amp (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Tue, 6 Apr 2004 18:35:55 -0600
Hello Amp gurus, I picked up an amp at a hamfest last weekend. It appears to be a homebrew job and I am wondering if you all might recognize the configuration and can point me to a magazine article o
/archives//html/Amps/2004-04/msg00054.html (7,993 bytes)

3. [Amps] 3kv variable one amp PS (score: 1)
Author: <chris@yipyap.com>
Date: Tue, 4 May 2004 15:00:38 -0000
One of you guys needs this I'm sure. I was at the local university's surplus warehouse this morning checking out what they are going to sell in the quarterly auction coming up this Saturday. An item
/archives//html/Amps/2004-05/msg00047.html (7,411 bytes)

4. [Amps] Unknown tube amp (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Sun, 12 Dec 2004 08:23:15 -0700
Hi, I recently inherited what is supposed to be a 1kw homebrew AM transmitter. It was built by W6MSC, a former ham and retired engineer for VOA. But, the PA doesn't have any tubes in it, so I was thi
/archives//html/Amps/2004-12/msg00179.html (7,531 bytes)

5. Re: [Amps] Unknown tube amp (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Sun, 12 Dec 2004 12:16:07 -0700
Thanks for the ideas so far! I will be attempting to get some pictures today, and I will post that info. Also, I'm going to write a letter to W6MSC and see what he remembers. Thanks! Chris kc0atc ___
/archives//html/Amps/2004-12/msg00186.html (7,551 bytes)

6. Re: [Amps] Unknown tube amp (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Sun, 12 Dec 2004 12:48:22 -0700
Here are the pictures! www.yipyap.com/radio_stuff/PA-1.jpg is the front www.yipyap.com/radio_stuff/PA-2.jpg is the side www.yipyap.com/radio_stuff/PA-3.jpg is the back www.yipyap.com/radio_stuff/PA-4
/archives//html/Amps/2004-12/msg00187.html (7,831 bytes)

7. Re: [Amps] Unknown tube amp (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Sun, 12 Dec 2004 15:36:05 -0700
Thanks everybody! I've put together a letter with the pictures and the suggestion that maybe it was 250TH's in there. I'm sending it off to Bill (w6msc) to see if that resonates with his memory. I wi
/archives//html/Amps/2004-12/msg00200.html (7,996 bytes)

8. [Amps] 8122 x 12 (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Tue, 28 Dec 2004 21:18:16 -0700
I dropped by the university surplus warehouse today and picked up a couple of beat-up RF amps, Amplifier Research Model 200L. Only one has it's RF deck, and that has just 11 of it's 12 8122 tubes res
/archives//html/Amps/2004-12/msg00370.html (7,301 bytes)

9. [Amps] 3cx1000a7 for sale or trade (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Mon, 3 Jan 2005 22:09:02 -0700
I have a 3cx1000a7 and socket that came from a device, probably a plasma generator amp, that I bought in whole at a hamfest and disassembled. Tube condition is unknown. I will attempt to perform any
/archives//html/Amps/2005-01/msg00049.html (6,575 bytes)

10. [Amps] Advice on how to work this thing... (score: 1)
Author: <chris@yipyap.com>
Date: Fri, 7 Jan 2005 22:43:39 -0000
I've been assembling this homebrew 1KW AM transmitter that I inherited from W6MSC. (see www.yipyap.com , link at bottom of the page...) Right now I'm accumulating the tubes it needs. I've already men
/archives//html/Amps/2005-01/msg00108.html (8,372 bytes)

11. [Amps] old style armored wire ? (score: 1)
Author: <chris@yipyap.com>
Date: Mon, 10 Jan 2005 22:50:35 -0000
Hi, It's me again, the guy with the 1 KW AM transmitter. Today's question: All of the interconnect cables on this thing are made of a cable that I've never seen before. Not too surprising since it wa
/archives//html/Amps/2005-01/msg00189.html (6,741 bytes)

12. Re: [Amps] water cooled (score: 1)
Author: <chris@yipyap.com>
Date: Fri, 4 Mar 2005 18:39:32 -0000
I've never done water cooling. Just had a couple of thoughts: 1) there was an article in QST within the last couple or three months about a water cooled amp. 2) The car radiator idea is cool, but I w
/archives//html/Amps/2005-03/msg00063.html (6,974 bytes)

13. [Amps] Transformer repair query (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Sat, 2 Apr 2005 15:08:58 -0700
I picked up a transformer at a hamfest today. It is a battleship grey cube, 6-3/4" by 7" by 8" and it weighs 63 lbs according to my bathroom scale. It has 4 terminals 1--2 and 3--4 the voltage ratio
/archives//html/Amps/2005-04/msg00048.html (7,026 bytes)

14. Re: [Amps] U.S. Military chooses Harris (score: 1)
Author: <chris@yipyap.com>
Date: Thu, 28 Apr 2005 14:53:08 -0000
Off topic, possibly. State secret, no way. (To contiue the off topic part...) My opinions of military procurement were formulated by a short stint in MARS. It was apparent then that they would rather
/archives//html/Amps/2005-04/msg00598.html (8,242 bytes)

15. [Amps] FS: 8122 tubes - 90% strength (score: 1)
Author: "Chris Howard" <chris@yipyap.com>
Date: Wed, 6 Jul 2005 16:29:50 -0600
I have four used 8122 tubes for sale. They are all from a single lab-grade RF amplifier. They have discoloration and rate at 1.4 out of 1.5 for output. I would like $15.00 each plus shipping, or make
/archives//html/Amps/2005-07/msg00041.html (6,896 bytes)

16. Re: [Amps] Project Boxes... (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Mon, 12 Sep 2005 11:07:38 -0600
I have some rackmount card racks that you can have for the shipping. They are about 6-7 inches high, but do not have a panel on the front or the back. Chris w0ep -- Chris Howard YipYap.Com chris@yipy
/archives//html/Amps/2005-09/msg00100.html (9,135 bytes)

17. [Amps] help needed sorting out a tube rectifier circuit (score: 1)
Author: <chris@yipyap.com>
Date: Tue, 4 Oct 2005 15:49:06 -0000
(kind of AMPS related... you may want to delete if you're not into old tube gear) I'm back to working on restoration of a big homebrew AM/CW rig that I inherited from W6MSC last December. I am scratc
/archives//html/Amps/2005-10/msg00114.html (7,677 bytes)

18. [Amps] probably off topic: 39.44 ghz klystron (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Sat, 18 Feb 2006 14:32:00 -0700
I was at the local university's surplus equipment sale today and picked up a box of microwave stuff. One part says it's a 39.44 ghz klystron. There is some waveguide, a frequency indicating device, a
/archives//html/Amps/2006-02/msg00346.html (6,605 bytes)

19. Re: [Amps] QSK (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Thu, 23 Feb 2006 14:40:53 -0700
Is it already time for the bears to wake up from hibernation? Spring must be coming! _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/
/archives//html/Amps/2006-02/msg00465.html (7,581 bytes)

20. Re: [Amps] HB amps (score: 1)
Author: Chris Howard <chris@yipyap.com>
Date: Thu, 02 Mar 2006 20:57:14 -0700
A viewing window is nice. Chris w0ep _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2006-03/msg00029.html (6,825 bytes)

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