Eimac Tube

[bcarling@cfl.rr.com]

I wonder what piece of Hetahkit equipment this was used in?
I don't remember them using a 4X150A in anything at all.

You could use a tube tester, or if you don't have one, find
someone who has one that will measure that tube. Most testers
don't but some of the better Hickok ones might.

Other than that you can hook up filament power and then see if you 
can get some emission from connecting a high voltage power supply
between the cathode and the anode. That is all a tube tester does
anyway. measure the cathode current with a DC ammeter.

Chances are if it has good emission that it works fine.
What do you intend to do with it? Maybe build an RF amplifier for your
Heath radios?

Brian, AF4K

Original Message:
-----------------
From: DAVID JACKSON RDJ2004 at MSN.COM
Date: Tue, 08 Nov 2005 10:33:38 -0800
To: HEATH at LISTSERV.TEMPE.GOV
Subject: Eimac Tube


I came across an Eimac 7034/4X150A PA tube and need some help in
determining whether it is good or bad.  Does anyone have a simple way to
test the tube, short of installing in a rig that uses the tube?  It appears
to be new, and the package is marked that way.  I have a limited collection
of test gear.
Thanks.
Dave
KA7GLI

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