ARCHIVE FILM · gov.dod.dimoc.28372

BASIC TELEPHONY

Name: BASIC TELEPHONY
Channel: Department of Defense
Description: Department of Defense PIN 28372 BASIC TELEPHONY 1961 ELECTRO-MAGNETIC THEORY AS APPLIED TO TELEPHONY; COMPONENTS, OPERATION AND TRANSMISSION RANGE OF SOUND POWERED, LOCAL BATTERY, AND COMMON BATTERY TELEPHONIC SYSTEM..

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Department of Defense PIN 28372 BASIC TELEPHONY 1961 ELECTRO-MAGNETIC THEORY AS APPLIED TO TELEPHONY; COMPONENTS, OPERATION AND TRANSMISSION RANGE OF SOUND POWERED, LOCAL BATTERY, AND COMMON BATTERY TELEPHONIC SYSTEM..

Public domain

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BASIC TELEPHONY. Department of Defense. Internet Archive · FedFlix.

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