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References: [ +from:Theo.Bellamy@Spirittelecom.com: 47 ]

Total 47 documents matching your query.

1. [Amps] Band Switching with vacuum relays (score: 1)
Author: Theo Bellamy <Theo.Bellamy@Spirittelecom.com>
Date: Fri, 04 Feb 2005 12:36:08 -0500
Hi, I have searched the archives and haven't found much about this ... sorry if I missed it and the subject has been discussed already. I am about to begin construction of a YC156 amp (finally). I ha
/archives//html/Amps/2005-02/msg00093.html (7,208 bytes)

2. Re: [Amps] CB Amps...Trash or Treasure? (score: 1)
Author: Theo Bellamy <Theo.Bellamy@Spirittelecom.com>
Date: Mon, 14 Feb 2005 16:12:51 -0500
Interesting ... I always wondered that. I used to pay the bills in the early 70s by fixing CBs by the side of the highway. Amazing what a guy will do when he is broke. I converted a number of D&A Pha
/archives//html/Amps/2005-02/msg00500.html (11,608 bytes)

3. Re: [Amps] Most hideous amp. (score: 1)
Author: Theo Bellamy <Theo.Bellamy@Spirittelecom.com>
Date: Mon, 21 Feb 2005 09:36:44 -0500
I wonder if "egor246" ever plugged it in .... _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2005-02/msg00646.html (8,115 bytes)

4. [Amps] Refurbishing a Henry 3K Classic II (score: 1)
Author: Theo Bellamy <Theo.Bellamy@Spirittelecom.com>
Date: Mon, 04 Apr 2005 15:32:00 -0400
I have a Henry 3K Classic II that hasn't been turned on in over ten years. I am hoping to get it on the air again. Any input or ideas on the following questions would be most welcome: 1. What type of
/archives//html/Amps/2005-04/msg00084.html (7,155 bytes)

5. Re: [Amps] Refurbishing a Henry 3K Classic II (score: 1)
Author: Theo Bellamy <Theo.Bellamy@Spirittelecom.com>
Date: Tue, 05 Apr 2005 08:28:34 -0400
Thanks to all who replied, both on the list and off! Lots of great comments and suggestions. I removed the RF deck and blower last night and did a detailed visual inspection. No rust or corrosion any
/archives//html/Amps/2005-04/msg00100.html (9,801 bytes)

6. Re: [Amps] Solid State Amps (score: 1)
Author: Theo Bellamy <Theo.Bellamy@Spirittelecom.com>
Date: Fri, 08 Apr 2005 16:42:15 -0400
Any sufficiently advanced technology is indistinguishable from magic. Arthur C. Clarke, "Profiles of The Future", 1961 The _______________________________________________ Amps mailing list Amps@conte
/archives//html/Amps/2005-04/msg00187.html (9,174 bytes)

7. Re: [Amps] Soft Start (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Fri, 12 Aug 2005 12:59:53 -0400
Why not just put the soft start relay coil across the primary. Since there will be a big voltage drop across the step start resistors - leaving very low voltage across the transformer primary until t
/archives//html/Amps/2005-08/msg00441.html (8,629 bytes)

8. Re: [Amps] Soft Start (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Fri, 12 Aug 2005 13:15:52 -0400
silly me .... that works with a B+ supply, but probably not with a filament xmfr. Sorry .... Theo Why not just put the soft start relay coil across the primary. Since there will be a big voltage drop
/archives//html/Amps/2005-08/msg00444.html (9,240 bytes)

9. Re: [Amps] Palstar DL5K 5KW load (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Wed, 31 Aug 2005 11:07:44 -0400
Haven't you heard? 20 wpm Extras can now run 6kw. It is only fair since 5 wpm Extras can run 1.5 kw .... Theo K4MO ;-) --Original Message-- From: amps-bounces@contesting.com [mailto:amps-bounces@cont
/archives//html/Amps/2005-08/msg00772.html (10,634 bytes)

10. Re: [Amps] Grounded Screen 4CX1500B (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Tue, 08 Nov 2005 10:44:18 -0500
A wee bit off the direction the conversation has gone in this thread, but I've always liked this amp. Here is an L4B that a friend of mine converted to 2 x 4CX1500B grounded grid many years ago: http
/archives//html/Amps/2005-11/msg00117.html (8,511 bytes)

11. Re: [Amps] Emron rip-off (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Fri, 11 Nov 2005 09:38:58 -0500
Hmmmm ... ripped off Peter Dahl's tranformer catalot too: http://www.therfshop.com/catalog/hamtrans011404.htm Theo K4MO Compare the Emron text here http://emtron.com.au/amplifiers_dx1b.php to this ht
/archives//html/Amps/2005-11/msg00141.html (7,350 bytes)

12. [Amps] Fil xfmr and socket needed (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Tue, 22 Nov 2005 16:41:19 -0500
Hi fellow ampers .... I am in need of a filament transformer and tube socket for a 3-1000Z project. Anyone have any in their junk box they can part with? The transformer should be 7.5 v @ 21 A and th
/archives//html/Amps/2005-11/msg00447.html (6,738 bytes)

13. Re: [Amps] Polishing Aluminum Panels (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Tue, 13 Dec 2005 08:02:07 -0500
Everything known by mankind about polishing aluminum can be found at http://www.perfectpolish.com/ 73 - Theo K4MO Greetings, I am considering polishing the panels on a homebrew amp to a mirror finish
/archives//html/Amps/2005-12/msg00149.html (7,537 bytes)

14. Re: [Amps] Difference between Henry 2k and 3k? (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Mon, 19 Dec 2005 13:11:15 -0500
Check this out: http://www.radiodan.com/ampsum/oldhenrys.htm 73, Theo K4MO Can someone list the major difference between these two amps please? Thanks John K5MO ______________________________________
/archives//html/Amps/2005-12/msg00263.html (7,685 bytes)

15. [Amps] IMD numbers for Russian tubes (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Tue, 31 Jan 2006 13:38:15 -0500
I have been thinking about changing my plans and building an amp with a Russian triode(s) in it. In reading the web about these tubes it seems that most of them were designed to be Radar Oscillators
/archives//html/Amps/2006-01/msg00770.html (6,643 bytes)

16. Re: [Amps] Pi vs Pi-L (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Wed, 01 Feb 2006 13:41:06 -0500
So, if Mr. Averageham wants to build an amp with a Pi network tank, and he uses a multi-band antenna, will using an antenna tuner between the amp and the antenna insure that his harmonics are suffici
/archives//html/Amps/2006-02/msg00012.html (7,458 bytes)

17. Re: [Amps] Super buy on the Bay! (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Fri, 03 Feb 2006 10:20:58 -0500
They look like a tube caddy with knobs, don't they? Actually, I have converted three of these (D&A Phantom 500's) to "real" ham amps by ripping out the driver stage and putting a band switched tank i
/archives//html/Amps/2006-02/msg00053.html (8,994 bytes)

18. Re: [Amps] Harmonics - field notes, con't (score: 1)
Author: Theo Bellamy <theo.bellamy@spirittelecom.com>
Date: Tue, 07 Feb 2006 13:59:28 -0500
Very interesting, Steve. I sure would like to see the results when doing the same test but with a multi-band antenna like an 80/40 meter "fan doublet". Theo K4MO Hi All: NOTES: Antenna RF link couple
/archives//html/Amps/2006-02/msg00164.html (7,667 bytes)

19. [Amps] Need some Dentron Knobs (score: 1)
Author: "Theo Bellamy" <theo.bellamy@spirittelecom.com>
Date: Mon, 20 Feb 2006 10:06:13 -0500
Hello, I have a nice Dentron Clipperton-L amp that needs a couple of knobs. I imagine knobs from a number of Dentron products would match. I need a large knob for the Tune control, and a small one fo
/archives//html/Amps/2006-02/msg00360.html (6,558 bytes)

20. Re: [Amps] Vegetable oil dummy load (score: 1)
Author: "Theo Bellamy" <theo.bellamy@spirittelecom.com>
Date: Tue, 28 Feb 2006 13:08:26 -0500
I once fed power to a pine tree between a spike in the tree and a ground rod. Worked several stations on 80 meters with it. Theo K4MO _______________________________________________ Amps mailing list
/archives//html/Amps/2006-02/msg00672.html (7,363 bytes)

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