Topband: 8877 Tube

[ZR]

Is that at full power out or in standby?

Carl
KM1H


----- Original Message ----- 
From: "Chortek, Robert L" <Robert.Chortek at berliner.com>
To: <topband at contesting.com>
Sent: Wednesday, November 14, 2012 6:56 PM
Subject: Topband: 8877 Tube


> Wonder if someone can help with a technical question with the amp I use on 
> 160 meters.
>
> The Spec Sheet for the 8877 tube lists the "Absolute Maximum Plate Voltage 
> of 4000 Volts" for the tube, and also says in "typical operation" the 
> plate voltage is between 2700 and 3500 volts. In my amp (Ameritron 
> AL-1500), the plate voltage is 3750.  My question is - should I be 
> concerned (it's clearly below the maximum" but above the range that is 
> considered "typical"?   I just want to be sure I'm not adversely affecting 
> the useful life of the tube.
>
> Any help would be appreciated.
>
> 73,
>
> Bob/AA6VB
>
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