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This is a Hickok oscilloscope made in the very early 50`s....The label on the front says:

OS-8U
OSCILLOSCOPE
supply: 105 to 125 V 50 to 1600~
SERIAL #2
for general electronics use
manufactured for
NAVY DEPARTMENT - BUREAU OF SHIPS
by contractor
The Hickok Electrical Instrument co.
Cleveland, Ohio
Contract number 8SR-42167

The carry case measures 6" x 8.75" x 13".....I`ve searched, and the only one that comes up is a model OS-8/ BU...not a OS-8/U.....With a serial number of 2, I`m wondering if it was only made a very short time, then they started with the OS-8/BU.

The on-line picture of the OS-8/BU looks very similar to the OS-8/U....Anyone know anything about it?

Thanks, Ray
[img]W3ESE

This is an audio range oscilloscope and saw general use for monitoring audio signals or sometimes even looking at the output of an RTTY converter