[Motorola] Motorola Tube Amps

Mike Clarson [email protected]
Tue, 20 Apr 2004 16:29:11 -0400


I do not recall a one tube version of these using the convection cooled
tube--only air cooled. I do recall the 8072 one tube version for 450 MHz.The
basic design of these 2 tube decks were quite similar thru the MICOR era. I
have some info on the MICOR amps in 30-50 MHz range, so if you do not get a
response for you exact amps, this may help. May have others also--will have
to check. I do recall an article for modifing one of these amps for 2 meter
SSB in one of the ham magazines but that is as close as I can get. --Mike,
WV2ZOW

-----Original Message-----
From: [email protected]
[mailto:[email protected]]On Behalf Of Kinney John-r17512
Sent: Tuesday, April 20, 2004 3:45 PM
To: '[email protected]'
Subject: [Motorola] Motorola Tube Amps


I have several tube amps, made by Motorola in the ' 60's.  These RF decks
use convection cooled vacuum tubes (8560AS) in either 1 or 2 tube
configurations.  Motorola apparently made these amps to cover multiple
frequency bands.  I have a dual tube RF deck that looks like it should work
around 50 MHz.  I also have 2 dual tube decks that work in the 2 meter band.
Lastly I have 3 single tube decks that operate in the 2 meter band.  I am
looking for anyone that could provide documentation on any of these amps or
point me in the direction of an archive for this information.  Thanks in
advance for your assistance in this matter.

John Kinney
KA7CVJ
Tempe, Arizona
480-413-4290