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1. [Amps] Glass Vs Ceramic (score: 1): Author: "Chris Hays" <chris@chrishays.com>; Date: Tue, 6 Jun 2017 09:05:55 -0700; One should always be careful of generalizations. Its all about the seals! While the 3-500Z indeed has a reputation for being a "leaker," you also find anecdotes about tubes that have been on the shel; /archives//html/Amps/2017-06/msg00085.html (9,856 bytes)
2. Re: [Amps] Glass Vs Ceramic (score: 1): Author: Herbert Schoenbohm <herbert.schoenbohm@gmail.com>; Date: Tue, 6 Jun 2017 12:32:49 -0400; Everything from Machelett went to China where power tubes are being manufactured under that same name. I recently price a 3CX1500A7 at 1/3rd the price of an Eimac version. K5SVC imports them and offe; /archives//html/Amps/2017-06/msg00087.html (7,496 bytes)
3. Re: [Amps] Glass Vs Ceramic (score: 1): Author: "Roger (K8RI)" <k8ri@rogerhalstead.com>; Date: Fri, 9 Jun 2017 03:12:21 -0400; In my opinion and I have worked with glass, quartz, and metal using H2 torches, but not sealing tubes. Sealing glass to metal has remained as much an art as science. I think the results of companies; /archives//html/Amps/2017-06/msg00123.html (11,392 bytes)

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