mystery tube

[Glen Zook]

It is an 8560A with Motorola's part number.  They were
used in the 300 watt lowband and highband amplifiers
(FM output).  Basically it is the same as a 4CX250B
with a conduction cooled anode instead of air cooled.

Have seen several hundred of these over the years,
especially when I owned the Motorola reconditioned
equipment center for the south-central US!

Glen, K9STH



I picked up a tube that looks like an Eimac 8873, but
it only has 8 pins. It is labled Motorola, with the
following number designation: 65-83382DO.


=====
Glen, K9STH

Web sites

http://home.comcast.net/~k9sth
http://home.comcast.net/~zcomco

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