[GreenKeys] TELETYPE STROBOSCOPIC

[W2HX]

Not mine, not cheap, but oh so cool.

TELETYPE STROBOSCOPIC SIGNAL DISTORTION TEST, Army, Circa: JAN 1970

https://www.ebay.com/itm/TELETYPE-STROBOSCOPIC-SIGNAL-DISTORTION-TEST-Army-Circa-JAN-1970-/273489714747



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