I ''inherited'' a big old tube--Western Electric 219-D.--It is 3.5" in Dia. and about 12" tall.It has only an anode and a filament,all coming out on three .375 Dia. pis at the base.--Looks like a low voltage rectifier,of sorts.-----I cannot find any data/info on this thing on the web----May be someone,out there,can give me some info,before I turn it into a lamp.---Thanks,---Olaf----

Hi,
Actually, the place youmight want to check is here:
http://www.westernelectric.com/spec_sheets/we_spec_sheets.htm
They provide an archive of the old Western Electric tubes as a service to those who still have questions on the old "Western Electric" tubes.

: I ''inherited'' a big old tube--Western Electric 219-D.--It is 3.5" in Dia. and about 12" tall.It has only an anode and a filament,all coming out on three .375 Dia. pis at the base.--Looks like a low voltage rectifier,of sorts.-----I cannot find any data/info on this thing on the web----May be someone,out there,can give me some info,before I turn it into a lamp.---Thanks,---Olaf----