[Amps] 8877 bad date codes

[Carl]

There are also the early tubes that had much higher gain and Eimac did a 
redesign. I have a 79 code that was removed from an Alpha 77 that would 
smack a 2500W slug with around 50W drive. Owners were driving them at 100W + 
and wiping out the grid.

One person blamed it on parasitics (;-

Carl
KM1H


----- Original Message ----- 
From: "Gary Schafer" <garyschafer at comcast.net>
To: <amps at contesting.com>
Sent: Friday, January 15, 2010 3:38 PM
Subject: [Amps] 8877 bad date codes


> Does anyone know what years (date codes) to avoid on the 8877? I have seen
> 8609 - 8905.
>
> Thanks
> Gary  K4FMX
>
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