On Tue, 12 Feb 2008 00:15:57 -0400, "Reed Park"
wrote:
They were used in Western Electric amps in the early 20s.
Here's a page with info about them,
http://www.nutshellhifi.com/library/Rosetta_Stone.html
Ron W4RON
Thanks for the info Ron. I suspected it was a triode, but had
no idea what application it might have been used in.
7 3
Reed
Retired radio tech.
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