Archive
Tag "telegraph"
Science in Pictures (Sep, 1947)

Science in Pictures

Push-Button Telegraph center permits messages to be typed only once, on a “printer perforator,” at point of origin. When messages reach the center, a clerk pushes a button for the city of destination.

Fishy Idea dreamed up by amateur inventor Dr. Carl Omeron, right, looks like a spark of genius. This is it: Tie balloons to a live “Judas” fish (which you catch the hard way). Put Judas back in the water and he’ll lead the way to the whole school.

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Telegrams Ride the Tones of Electric Organ (Oct, 1938)

Telegrams Ride the Tones of Electric Organ

Telegraph engineers have learned from the electric organ how to send ninety-six telegraphic messages in one direction over a single wire at the same time. They borrowed from the Hammond organ the idea of dispatching multiple messages on different tone pitches.

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PROFESSIONAL TELEGRAPH PRACTICE SET (Feb, 1947)

Send and Receive Code with this PROFESSIONAL TELEGRAPH PRACTICE SET

Same as used by U. S, Signal Corps.

Learn code quickly and have loads of fun with your “private” intercom system.
Only $9.95 Complete with everything.

No distance limit between stations. Send $2.00 with order, pay balance to postman.
Satisfaction Guaranteed!
AUDIO SALES CO.
11 WARREN ST. NEW YORK 7, N. Y.

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