National Radio's 50th Anniversary Album

The SW-3 -- the receiver that started nine out of ten old timers in amateur radio.

National's HFC 54-60 Mc converter (center) shown in an early 5 meter station.

Early experiments in television -- the National "Flying Spot" scanner, about 1921. [This same picture appeared in QST June, 1928. The receiver is a SW-2.]

A mobile version of the SW-45 -- the object in the center of the photo must be the "grip-to-talk" switch!

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