[CW] Fwd: Dave: Name This #355 Tube

[D.J.J. Ring, Jr.]

What do you think this is?  Maybe he can breathe on it and produce an image
of the number on the glass - it's an old trick I've used in the past.



---------- Forwarded message ---------
From: David Navone <dnavone at davidnavone.com>
Date: Sat, Mar 14, 2020 at 3:57 PM
Subject: Dave: Name This #355 Tube
To: D.J.J. Ring, Jr. <djringjr at gmail.com>


Hi Dave,

I recently bought a lot of old tubes.. and this one is unmarked, save for
the #355 on the paper towel surrounding … The base is copper. Three
“Getters.”

Do you have any info?

Thanks.

Dave
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