[Patrick Turner]

Woot wrote:

Are these usable in any kind of radio/audio gear? I
have maybe a dozen or so of these for sale if there is a use for them.
They were part of some things I grabbed from a telephone microwave relay
station that was being done away with. Actually have some other oddball
tubes, thermal relays inside a vacuum tube enclosure and other odd stuff
if anyone is interested. Can take and upload pictures of the stuff too.

The 417A can possibly be worth a lot of money, so place them on e-bay
or on a website for sale at what is the going rate is for second hand
417A.

Its used in preamps and is one of a few types of high transconductance
low noise triodes
liked by many audiophiles.

Patrick Turner.