[ARC5] Re: [Milsurplus] tube spares go to...?

[Marty Reynolds]

> The EF-50 is a high-frequency pentode from the early 1940's. During the
> war it was used in many military applications, and also in TV sets even in
> the post-WW2 years. It's also used due to its low noise and high gain as a
> very efficient converter tube in the Wireless Set 19.
>
> 73, Meir WF2U
> Landrum, SC
>
>

EF50

If the unique red metal enclosure isn't enuf, it also may be the world's
only 9-pin loctal

Think it was Sylvania's gift to the allies