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Total 8 documents matching your query.

1. [AMPS] New 3-500Z (score: 1): Author: k0wa@southwind.net (Lee Buller); Date: Wed, 26 Feb 1997 13:39:21 -0600; Several years ago, a CQ magazine writer extolled the virtue of the Sylvania or Amprex 3-500Z. he said it had heavier graphite on the plate and a different pate design which allows for more power diss; /archives//html/Amps/1997-02/msg00069.html (7,507 bytes)
2. [AMPS] New 3-500Z (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Wed, 26 Feb 1997 23:42:29 -0500 (EST); << Several years ago, a CQ magazine writer extolled the virtue of the Sylvania or Amprex 3-500Z. he said it had heavier graphite on the plate and a different pate design which allows for more power d; /archives//html/Amps/1997-02/msg00078.html (8,050 bytes)
3. [AMPS] New 3-500Z (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Thu, 27 Feb 1997 08:29:46 EST; Thats a loaded question Lee....a few of them actually. Here are a few observations based on experience or from qualified sources. I have not seen any published IMD data on the graphite anode versions; /archives//html/Amps/1997-02/msg00080.html (8,297 bytes)
4. [AMPS] New 3-500Z (score: 1): Author: k6pu@volcano.net (Ken Anderson); Date: Thu, 27 Feb 1997 08:15:54 -0800; I can't comment on the quality of current production Amperex tubes. But, I have a pair manufactured in the late 60's in a HB version of a Henry 3K. These tubes have thousands of hours of serious cont; /archives//html/Amps/1997-02/msg00081.html (7,483 bytes)
5. [AMPS] New 3-500Z (score: 1): Author: AB4RU@stc.net (Ron Hooper); Date: Fri, 28 Feb 1997 00:14:24 +0000; I cant see how the material of the plate would have an effect on how it sounds. The graphite plate is used a lot in RF sealing equipment. I junked down several machines a few back, all used carbon pl; /archives//html/Amps/1997-02/msg00084.html (9,087 bytes)
6. [AMPS] New 3-500Z (score: 1): Author: AB4RU@stc.net (Ron Hooper); Date: Fri, 28 Feb 1997 00:32:55 +0000; Hi Ken, Your right about the tube being tough. I think Carl hit on something about the tube being more sensitive, causing problems with neutralization in some amps. The Carbon tube we ran in the seal; /archives//html/Amps/1997-02/msg00085.html (8,402 bytes)
7. [AMPS] New 3-500Z (score: 1): Author: W8JITom@aol.com (W8JITom@aol.com); Date: Thu, 27 Feb 1997 19:51:29 -0500 (EST); n a message dated 97-02-27 08:32:04 EST, you write: << I have not seen any published IMD data on the graphite anode versions and will leave that up to someone else.>> Tests here indictated equal perf; /archives//html/Amps/1997-02/msg00086.html (9,456 bytes)
8. [AMPS] New 3-500Z (score: 1): Author: km1h@juno.com (km1h@juno.com); Date: Thu, 27 Feb 1997 20:06:23 EST; I'll bet you that those tubes were 5868's Ron. Very common in that service. About the same size as 3-500's but with a 3-1000/4-1000 base. A great source for cheap sockets at least! 73....Carl KM1H --; /archives//html/Amps/1997-02/msg00087.html (8,062 bytes)

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