How to Become an Expert Operator - 3rd Edition
Omnigraph Mfg. Co.
Sold by High Ridge Books, Inc. - ABAA, South Deerfield, MA, U.S.A.
Association Member:
AbeBooks Seller since 30 July 1998
Used
Quantity: 1 available
Add to basketSold by High Ridge Books, Inc. - ABAA, South Deerfield, MA, U.S.A.
Association Member:
AbeBooks Seller since 30 July 1998
Quantity: 1 available
Add to basket24 pp. An interesting training device for prospective telegraphers, the Omnigraph has a dial for spelling out messages which would then be sent in Morse Code. There is also a different machine with a QWERTY-type keyboard for practice in listening to the sounds.
Seller Inventory # t00427
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