Search String: Display: Description: Sort:

Results:

References: [ +from:hrd998cc@yahoo.com: 30 ]

Total 30 documents matching your query.

1. Re: [Amps] cooling chimney? (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Mon, 14 Jul 2008 12:25:44 -0700 (PDT)
Carl, can you elaborate on the problems using Coleman chimneys? I plan on using them for a 4-400a project and also know of 2 other hams using them in conjunction with GS-35b's. It seems the Pyrex/bor
/archives//html/Amps/2008-07/msg00127.html (7,361 bytes)

2. Re: [Amps] cooling chimney? (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Tue, 15 Jul 2008 13:49:39 -0700 (PDT)
Pat, I have an L-4B inline and have another on the bench for repairs. Both amps have straight-sided chimneys (ies); the glass is a bit thicker than the Coleman, and they are shorter than the coleman-
/archives//html/Amps/2008-07/msg00138.html (13,972 bytes)

3. Re: [Amps] Air variable pitting - repairable? (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Sun, 20 Jul 2008 19:29:18 -0700 (PDT)
Well, if it is the environment that is doing the cap in, and if you can dismantle the plates of the cap, you might try bonding a thin sheet of Kapton to the stator plates. Of course, this assumes the
/archives//html/Amps/2008-07/msg00176.html (12,891 bytes)

4. Re: [Amps] LK-500 Blows Filter Cap (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Mon, 1 Dec 2008 20:09:43 -0800 (PST)
Try the scent of a blown selenium rectifier! That'll clear a room!! Russ W6OHM _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailm
/archives//html/Amps/2008-12/msg00029.html (7,355 bytes)

5. Re: [Amps] LK-500 Blows Filter Cap (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Mon, 1 Dec 2008 20:27:45 -0800 (PST)
My .02: Heat can be a factor, and lacking enough voltage headroom with respect to the capacitor voltage rating can definitely be a factor. Suggest using caps rated for 105 degree C and increasing the
/archives//html/Amps/2008-12/msg00030.html (9,212 bytes)

6. Re: [Amps] field day - an illogical spinoff from Linear Amps (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Wed, 3 Dec 2008 12:11:57 -0800 (PST)
There are some who enjoy today's version of field day. I am one of them. I relicensed in late 2003 and participated in my very first field day in '04. The past 2 years, I have set up on a mountain to
/archives//html/Amps/2008-12/msg00074.html (9,841 bytes)

7. Re: [Amps] Linear Amps (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Wed, 3 Dec 2008 13:03:50 -0800 (PST)
Very well put, Jeff. Ditto. 73 Russ W6OHM <Snip> _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2008-12/msg00077.html (11,279 bytes)

8. Re: [Amps] Dud tubes rebuilders... (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Tue, 9 Dec 2008 07:07:12 -0800 (PST)
Check with Econco in Woodland, California. They rebuild many Eimac tubes. I don't know if the YC-156 is on their rebuild list. Econco 1318 Commerce Avenue Woodland, CA 95776-5908 Tel: +1 (800) 532-66
/archives//html/Amps/2008-12/msg00172.html (7,996 bytes)

9. Re: [Amps] Input SWR (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Tue, 9 Dec 2008 09:09:53 -0800 (PST)
I am not familiar with that particular amp, but it sounds like something was either damaged when the old tubes failed -or- something has changed during or since the new tubes were installed. I doubt
/archives//html/Amps/2008-12/msg00174.html (8,396 bytes)

10. Re: [Amps] L-4B Issue (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Fri, 26 Dec 2008 17:43:02 -0800 (PST)
I replaced my resistors because I didn't like the excess heat generated. I built a separate power supply that just fits inside the Drake P/S. Works a treat!! Russ W6OHM ______________________________
/archives//html/Amps/2008-12/msg00342.html (18,258 bytes)

11. Re: [Amps] plate bypass caps (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Sun, 11 Jan 2009 21:15:17 -0800 (PST)
But will they handle the RF current? _______________________________________________ Amps mailing list Amps@contesting.com http://lists.contesting.com/mailman/listinfo/amps
/archives//html/Amps/2009-01/msg00100.html (11,283 bytes)

12. Re: [Amps] plate bypass caps (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Mon, 12 Jan 2009 09:05:49 -0800 (PST)
Ooops; I mis-read as blocking caps. Oh well. Yes, they will be fine at the base of the plate choke; I use similar caps in my projects but use good doorknobs for blocking caps. Thanks. Russ __________
/archives//html/Amps/2009-01/msg00103.html (8,386 bytes)

13. Re: [Amps] Shaft Misalignment Solutions (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Sat, 24 Jan 2009 09:38:16 -0800 (PST)
It is a long shot, but the old military TRC-110 repeater gear used various U-joint shaft couplings for the same purpose. That is what I am using in my current 6 meter amp project. The only limiting f
/archives//html/Amps/2009-01/msg00295.html (10,019 bytes)

14. Re: [Amps] pole transformer (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Thu, 5 Feb 2009 18:19:07 -0800 (PST)
Yeah, this stuff can be deadly. Too much depth of exposure to this substance can immediately block assimilation of oxygen in your lungs. I know this because I work with it on a regular basis. I even
/archives//html/Amps/2009-02/msg00142.html (14,671 bytes)

15. Re: [Amps] Output Matching Network, Need Advice (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Wed, 25 Feb 2009 20:14:28 -0800 (PST)
Try shorting between one or two turns of your tank coil and re-try the analyzer. No need to solder, just insert a nut or two between the coil windings. I would not remove any more plates from the Tun
/archives//html/Amps/2009-02/msg00677.html (10,932 bytes)

16. Re: [Amps] HV measurements (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Tue, 10 Mar 2009 17:13:51 -0700 (PDT)
I just bought one of his a minute ago. The HV probe will add another layer of safety when checking plate supplies. My life is certainly worth his asking price. Thanks for the post. Russ W6OHM _______
/archives//html/Amps/2009-03/msg00299.html (13,131 bytes)

17. Re: [Amps] item that was for sale good luck shipping (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Sun, 15 Mar 2009 08:59:13 -0700 (PDT)
According to a local utility worker and fellow ham, as recently as a couple of years ago, the utility routinely dumped their PCB-laden transformer oil on the ground and a treated it with lime; job do
/archives//html/Amps/2009-03/msg00419.html (10,997 bytes)

18. Re: [Amps] item that was for sale good luck shipping (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Sun, 15 Mar 2009 09:16:36 -0700 (PDT)
I am not condoning breaking the law. I am more concerned with the folly of enacting laws based on "The sky is falling" mentality. It was not my intent to turn into a political discussion, so I am hop
/archives//html/Amps/2009-03/msg00422.html (13,289 bytes)

19. Re: [Amps] russian door knob caps for R Ftank circuit (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Thu, 7 May 2009 12:53:46 -0700 (PDT)
I agree on the Russian doorknobs. They are nice components. FWIW, I got mine from "QRO-stuff" on Ebay; he provides the screws for them at no additional cost. Russ KW6T _______________________________
/archives//html/Amps/2009-05/msg00031.html (8,991 bytes)

20. Re: [Amps] RF 103A plate transformer (score: 1)
Author: Russ Williams <hrd998cc@yahoo.com>
Date: Fri, 24 Jul 2009 09:32:17 -0700 (PDT)
I will guess that anything made by Harris is very conservatively rated. I think the Harris RF-110 amplifier is only rated at a kilowatt pep output; it uses a pair of 4CX1500's for finals! Russ KW6T _
/archives//html/Amps/2009-07/msg00326.html (8,728 bytes)

Current List: 1 - 20
Page: [1] [2]
This search system is powered by Namazu