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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+3\-500Z\s+tube\s+problems\s*$/: 9 ]

Total 9 documents matching your query.

1. [Amps] 3-500Z tube problems (score: 1)
Author: Jack C. Shutt <w9gt@frontier.com>
Date: Sat, 11 Jun 2016 16:55:55 +0000 (UTC)
Hello all.  I don't post here very often, but always enjoy reading the posts and comments about the experiences of others.I'm looking for some info and advice on 3-500Z tubes.  I have used these tube
/archives//html/Amps/2016-06/msg00032.html (8,074 bytes)

2. Re: [Amps] 3-500Z tube problems (score: 1)
Author: Vic Rosenthal <k2vco.vic@gmail.com>
Date: Mon, 13 Jun 2016 16:39:45 +0300
I have seen a few of these in genuine Eimacs from a specific period. I don't recall the date codes, but I'm sure someone here knows. The problem was bad welds which allowed the grid assembly to move
/archives//html/Amps/2016-06/msg00036.html (9,128 bytes)

3. Re: [Amps] 3-500Z tube problems (score: 1)
Author: Bryan Swadener via Amps <amps@contesting.com>
Date: Mon, 13 Jun 2016 19:00:51 +0000 (UTC)
Vic, 1986 to 1989. See http://lists.contesting.com/_amps/2014-04/msg00255.html. Someone with the callsign "K2VCO" asked that question. Maybe you know him? ;-) vy 73, Bryan WA7PRC Date: Mon, 13 Jun 20
/archives//html/Amps/2016-06/msg00042.html (9,644 bytes)

4. Re: [Amps] 3-500Z tube problems (score: 1)
Author: Bill Turner <dezrat@outlook.com>
Date: Mon, 13 Jun 2016 14:44:48 -0700
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Proper meter protection is easy if one understands the basics. Too often someone just puts a diode or pair of diodes across the meter and thinks it is pr
/archives//html/Amps/2016-06/msg00044.html (8,641 bytes)

5. Re: [Amps] 3-500Z tube problems (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Tue, 14 Jun 2016 06:16:05 +0800
G'day Jack. I have cleared a grid to filament short with a 100,000uF electrolytic capacitor charged to 13.8V from my shack power supply. The charged capacitor was connected between grid an filament a
/archives//html/Amps/2016-06/msg00047.html (9,930 bytes)

6. Re: [Amps] 3-500Z tube problems (score: 1)
Author: "Carl" <km1h@jeremy.qozzy.com>
Date: Tue, 14 Jun 2016 13:30:39 -0400
The weld problem was due to a cheapened down assembly where the original anode to top assembly was fully welded to just 3 spot welds. This was at the SLC plant which was known for several other dumb
/archives//html/Amps/2016-06/msg00052.html (10,642 bytes)

7. Re: [Amps] 3-500Z tube problems (score: 1)
Author: Vic Rosenthal 4X6GP <k2vco.vic@gmail.com>
Date: Wed, 15 Jun 2016 19:37:24 +0300
Nothing's new under the sun. 73, Vic, 4X6GP Rehovot, Israel Formerly K2VCO http://www.qsl.net/k2vco/ 1986 to 1989. See http://lists.contesting.com/_amps/2014-04/msg00255.html. Someone with the callsi
/archives//html/Amps/2016-06/msg00055.html (9,062 bytes)

8. Re: [Amps] 3-500Z tube problems (score: 1)
Author: Alek Petkovic <vk6apk@bigpond.com>
Date: Thu, 16 Jun 2016 07:09:33 +0800
Hey, did the 4-1000A have a similar problem? My mate had one and the anode structure was on the piss. The tube and box must have been dropped at some time. We just held the tube and using the laws of
/archives//html/Amps/2016-06/msg00060.html (12,557 bytes)

9. [Amps] 3-500Z tube problems (score: 1)
Author: "Jim Thomson" <jim.thom@telus.net>
Date: Wed, 15 Jun 2016 22:02:52 -0700
-- ORIGINAL MESSAGE --(may be snipped) REPLY: Proper meter protection is easy if one understands the basics. Too often someone just puts a diode or pair of diodes across the meter and thinks it is pr
/archives//html/Amps/2016-06/msg00062.html (10,766 bytes)

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