[Amps] Tube swap

[John Lyles]

At work we contracted with CPI/Eimac recently to build some pulsed HV 
switch triodes. We specifically requested they be made from glass and 
metal and not ceramic/metal. They complied.

73
John
K5PRO





On 1/27/14 8:09 PM, amps-request at contesting.com wrote:
> Message: 8
> Date: Mon, 27 Jan 2014 19:07:45 -0800
> From: William Turner<dezrat1242 at wildblue.net>
> To:amps at contesting.com
> Subject: Re: [Amps] Tube swap
> Message-ID:<52E71F01.8080201 at wildblue.net>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> In my (limited) experience, it seems that ceramic tubes are better at
> keeping their vacuum than glass tubes. Anyone else had that experience?
>
> Years ago, Tektronix changed over from glass CRTs to ceramic partly for
> that reason.
>
> 73, Bill W6WRT
> ex-Tekkie