Not National.
Leo was great for using strange tubes like the AX 9909 which quickly became
almost unobtanium.
Carl
KM1H
----- Original Message -----
From: "Zeitler, Lane LT, FST-1" <zeitlel@cpr3.navy.mil>
To: <amps@contesting.com>
Sent: Monday, March 29, 2010 8:23 AM
Subject: [Amps] 5514 triode
> Does anyone have any info on the 5514 triode made by CBS? I wonder why
> this tube never took off for ham radio. I think National or World Radio
> Labs used it. I can not find any data sheets on it either.
>
>
>
> Lane
>
> Ku7i
>
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