Search String: Display: Description: Sort:

Results:

References: [ +from:rstealey@hotmail.com: 73 ]

Total 73 documents matching your query.

1. [Amps] Testing amp with no air flow (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Thu, 19 Oct 2006 12:20:41 +0000
I will soom be ready to apply power for the first time to a homebrew 8877 amp. I need to make adjustments under the chassis with the tube filament lit and was wondering how long I can run the 8877 wi
/archives//html/Amps/2006-10/msg00192.html (6,959 bytes)

2. Re: [Amps] More information for "What NOT to buy".. (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Tue, 24 Oct 2006 12:31:49 +0000
And compare the bandswitch in an SB-220 with the L4B and you will see the difference. I swear the bandswitch in an R4A receiver is as heavy as an SB-220 ! And when you mistune the SB-220 and fry the
/archives//html/Amps/2006-10/msg00265.html (10,283 bytes)

3. Re: [Amps] 3CX3000 tuned input calibration (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Thu, 26 Oct 2006 14:47:36 +0000
Yes you can use a 50 ohm resistor right across the tuned circuit. I aligned my input circuit this way, using the values from the K8RA amplifier in QST, 20 years ago. It called for 4000 pf capacitors
/archives//html/Amps/2006-10/msg00284.html (8,110 bytes)

4. Re: [Amps] Crackling noise, SB-220 repair notes (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Fri, 05 Jan 2007 14:19:11 +0000
Why guess? Why try this, try that? The logical way to troubleshoot it is to isolate it, easily. Don't assume anything, other than possibly that it is high voltage related. First unsolder the hv lead
/archives//html/Amps/2007-01/msg00067.html (7,808 bytes)

5. Re: [Amps] EIMAC (8877 TYPE) (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Sat, 20 Jan 2007 15:16:52 +0000
I'll tell you guys an interesting little story about 6 meter amps that is relevant to this discussion. A few years ago a friend came to me for help with getting an amplifier working on 6 meters. He f
/archives//html/Amps/2007-01/msg00198.html (9,224 bytes)

6. Re: [Amps] Bad tubes from ebay, update (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Mon, 29 Jan 2007 17:14:19 +0000
I did some investigating on exland on eBay. I have found feedback ratings of less than 99% or so are very bad so when I see 95% for exland it would make me really think twice about doing business wit
/archives//html/Amps/2007-01/msg00319.html (8,975 bytes)

7. Re: [Amps] How best to reduce filament voltage? (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Fri, 02 Feb 2007 14:49:03 +0000
Ron, A 3-500 takes 15 amps, right? If I do my math right, you need to drop 1 volt. So a pair of 0.1 ohm resistors in parallel would be about right, pulling 5.75 watts each. I got 'em, if you want 'em
/archives//html/Amps/2007-02/msg00009.html (7,265 bytes)

8. Re: [Amps] Drake L4B (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Wed, 07 Feb 2007 20:32:26 +0000
Speaking of L4B's you guys got me going on investigating a little problem with mine. I don't know why this started happening because it was ok until now, but I noticed the 1000MP started cycling the
/archives//html/Amps/2007-02/msg00123.html (8,574 bytes)

9. Re: [Amps] Henry Amplifiers (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Wed, 28 Feb 2007 15:04:50 +0000
Well if you are looking for an amp that runs three times your legal power limit, and has headroom to spare then I would say you already have a mentor that is giving you the advice you seek. What do
/archives//html/Amps/2007-02/msg00413.html (7,395 bytes)

10. [Amps] MOVs on HV PS (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Mon, 05 Mar 2007 19:40:20 +0000
If I understood W8JI recently, Tom said MOVs should not be installed in a piece of equipment, forcing the surge to green wire ground, but rather should only be at the service entrance (or single poin
/archives//html/Amps/2007-03/msg00074.html (8,525 bytes)

11. [Amps] L4B power supply bleeder and surge resistor (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Fri, 16 Mar 2007 12:38:17 +0000
For your entertainment, here's last weeks excitement at K2XT. During a break in the ARRL contest the amp was idling away when all of a sudden a bang! and some minor pyrotechiques. One of the two blee
/archives//html/Amps/2007-03/msg00179.html (7,437 bytes)

12. [Amps] Surge resistor (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Wed, 21 Mar 2007 13:22:47 +0000
Tom, W8JI, says: The small glitch resistors in your amp don't do a darned thing I am in the process of finishing up my 8877 amp, and the plans I am using show a 0.6 ohm 1 watter and a 50 ohm 50 watte
/archives//html/Amps/2007-03/msg00276.html (9,009 bytes)

13. [Amps] 8877 grid trip (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Wed, 21 Mar 2007 13:37:22 +0000
On my 8877 that I am building there is a grid trip circuit. When it trips it requires a pushbutton on the front panel to reset it. I want to minimize front panel switches. Is there any reason I shoul
/archives//html/Amps/2007-03/msg00277.html (8,022 bytes)

14. Re: [Amps] Surge resistor (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Wed, 21 Mar 2007 23:02:56 +0000
Thanks for all the great responses to my question about glich resistors. I had no idea there was so much info available for such a simple question. Especially Tom, W8JI, you pointed out something I h
/archives//html/Amps/2007-03/msg00292.html (9,128 bytes)

15. [Amps] Why some messages are unreadable? (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Tue, 24 Apr 2007 12:35:59 +0000
I read most messages on this reflector via my web browser rather than via email. I have no problems when reading the email postings but from time to time I get something like this with the web browse
/archives//html/Amps/2007-04/msg00245.html (8,855 bytes)

16. Re: [Amps] Why some messages are unreadable? (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Tue, 24 Apr 2007 14:13:39 +0000
The problem occurs when using a web browser to view postings directly from a URL, reading postings as if I was not even a subscriber. It has nothing to do with email. (I prefer reading this way beca
/archives//html/Amps/2007-04/msg00248.html (8,864 bytes)

17. [Amps] Anyone need 8877 sockets? (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Sat, 12 May 2007 18:46:58 +0000
I have several ceramic 8877 sockets. These are NOS, some kind of military or industrial surplus. They are wrapped in paper, and have some small components soldered to the pins (rf choke, 1/2 watt res
/archives//html/Amps/2007-05/msg00125.html (7,245 bytes)

18. Re: [Amps] Drake L7E observations and question (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Thu, 21 Jun 2007 08:49:55 +0000
I am going to take a wild guess. Could it be they wanted the load capacitor knob to be at the same position for each band? Rick K2XT _________________________________________________________________
/archives//html/Amps/2007-06/msg00105.html (6,981 bytes)

19. [Amps] Analyzing crossmodulation in PA and antenna system- W8JIsuggestions (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Thu, 06 Sep 2007 14:27:56 +0000
This has been an interesting thread, and traditionally a difficult problem to isolate but once isolated has straightforward solutions. Several posters have given their experiences and possibilities f
/archives//html/Amps/2007-09/msg00046.html (8,194 bytes)

20. Re: [Amps] Evolutionary Imperitives (score: 1)
Author: "Rick Stealey" <rstealey@hotmail.com>
Date: Fri, 07 Sep 2007 00:45:14 +0000
snipe at you? I wasn't sniping at Tom. I meant every word I said. He is amazing, and it is refreshing to see someone attack a technical problem with logic and common sense. Impressive. If he doesn't
/archives//html/Amps/2007-09/msg00061.html (7,335 bytes)

Current List: 1 - 20
Page: [1] [2] [3] [4]
This search system is powered by Namazu