Show tongue telephone nab IV abc combination telephone phonograph copenhagen denmark distributor instrument send message once instrument upon tact tact fact magnetic field electro magnet steel wire drawn wire again field similar wire pen hagen magnet steel wire wound spiral non magnetic drum upon wire poles electro magnet transmitter vocal speech music diaphragm transmitter transferred magnet electro magnet drum set motion once wire poles magnet aides wire along rod until end wire thereupon device magnet another travel wag spiral quick back original position instrument ready wire connect magnetic ordinary telephone same ground before poles wire hail hail hall wire result telephone everything thing spoken transmitter distributor electro take place second re transmitting DB net pol met dr 8 POULSEN telephonic distributor |