[Boatanchors] Help IDing a Tube

[n2lxm at juno.com]

Greetings All,

        While I was searching through my storage closet I came across
some tube's I can find any real information on. They are marked Amperex
with the number 7377, made in Holland. A web search turned up a page of
data, but it was in French. What I could make out is that it's a dual
tetrode, good for a push-pull amp running class C. These are weird
looking, a glass envelope 1 3/4 " in dia, just a hair over 2" tall, it
has what looks like a standard 8 pin base with two larger pins offset for
indexing. I would guess they were used in audio service. Any one have any
thoughts. Thanks in advance. 


                                Jeff N2LXM
                  AMATEUR RADIO OPERATOR
                                AMERICAN
                                  PATRIOT
                  Proud Father of two US MARINES