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Robison's Manual of radio telegraphy and telephony for the use of naval electricians (1918)

Robison, S. S. (Samuel Shelburne), b. 1867, United States Naval Institute, Todd, David Wooster, Hooper, Stanford Caldwell · Annapolis, Md. : The United States Naval Institute · leaf 197

An illustration from Robison's Manual of radio telegraphy and telephony for the use of naval electricians, 1918, leaf 197
e lengths. 227. Fig. 109 shows the Pierce wave meter referred to in art. 226This meter is used for calibrating and determination of resonance bymeans of sound only. Fig. 110 illustrates the original Donitz wave meter with air thermom-eter. A hot wire ammeter or detector and galvanometer are now…

Telegraph, Wireless -- Handbooks, manuals, etc · Telephone, Wireless -- Handbooks, manuals, etc · Radio -- Handbooks, manuals, etc

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