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Frequency shift exciter o-39B/tra-7 barker & williamson


Article Sent By: K_Hooper@machine--tools.com (Katheryn Hooper)
Katheryn Hooper is presenting: Frequency shift exciter o-39B/tra-7 barker & williamson
FREQUENCY SHIFT EXCITER O-39B/TRA-7 BARKER & WILLIAMSON
PLEASE SEE ALL THE PICTURES. YOU DON'T WANT TO MISS ANY!!
USE SUPERSIZE OPTION TO SEE MORE DETAILS.
BARKER & WILLIAMSON for SIGNAL CORP. US ARMY
I recently acquired many ham pieces from a PA collector's estate.
Here is very interesting piece of equipment. It is extremally heavy unit. Cosmetically, unit could use some cleaning. Face plate is OK, with the exception of the edges, where the paint is off. Anyway, see pictures for details. I am not sure about how old it is. If you can help out with some description, we all would greatly appreciate the info.
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Frequency shift exciter o-39B/tra-7 barker & williamson