[Amps] installing a new 3CX1200D7

[Alek Petkovic]

Yeah. What Lou said.

Alek VK6APK.

On 12/11/2024 1:53 am, gudguyham--- via Amps wrote:
> If the tube is instant on idling it won’t to anything.  Just let it rip.
>
>
> Sent from the all new AOL app for iOS
>
>
> On Monday, November 11, 2024, 12:46 PM, Carl Braun <Carl.Braun at cattron.com> wrote:
>
> Please offer any suggestions for installing a new triode in a Henry amplifier.
>
> I've purchased a NEW Eimac 3CX1200D7 (YU121) from Richardson Electronics as I wanted a spare for my Henry Ultra amplifier. The amplifier is running well with its original (1991) Eimac 3CX1200D7 in place, so I want to remove that one and place the new one in service to ensure its working well and to determine output.
>
> What is the best way to start up a new ceramic triode?  My plan was to install the tube and turn on the amp and let it idle for 4 hours before applying any RF to it.  The 3CX1200D7 is an instant on tube that will have 3600/4600V plate voltage and 6.3V on the filament.
>
> Suggestions?
>
> Carl W9LF
>
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