telharmoniumn.

/ˌtɛlhɑːˈməʊnɪəm/

Etymology: < tel- (in tele- comb. form) + harmonium n.

An electrophonic instrument, invented by the American scientist Thaddeus Cahill (1867–1934) and designed to produce tones for transmission over telephone wires by means of rotating electro-magnetic generators.

ΘΚΠ

society > communication > telecommunication > telegraphy or telephony > telephony > telephone equipment > [noun] > exchange > exchange equipment

private line1852

bank1884

call-disc1884

howler1886

trunk1889

multiple switchboard1891

rack1893

line switch1898

heat coil1900

relay rack1902

multiple1905

listening key1906

telharmonium1906

wiper1906

preselector1912

line finder1922

rank1924

routiner1928

keysender1929

uniselector1930

wiper arm1933

1906 Chambers's Jrnl. June 495/1 In the telharmonium the qualifying ripples are ingeniously added to the waves of the fundamental note by a separate contrivance.

1934 N.Y. Times 13 Apr. 19/1 Thaddeus Cahill, who invented an electric typewriter and the device for producing music electrically, known as the telharmonium, died suddenly at 10 o'clock yesterday of a heart attack.

1978 P. Griffiths Conc. Hist. Mod. Music viii. 111 The pioneer..was Thaddeus Cahill, a Canadian scientist who demonstrated an extraordinarily bulky ‘telharmonium’ in 1906.

This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018).

单词	telharmonium
释义	telharmoniumn. /ˌtɛlhɑːˈməʊnɪəm/ Etymology: < tel- (in tele- comb. form) + harmonium n. An electrophonic instrument, invented by the American scientist Thaddeus Cahill (1867–1934) and designed to produce tones for transmission over telephone wires by means of rotating electro-magnetic generators. ΘΚΠ society > communication > telecommunication > telegraphy or telephony > telephony > telephone equipment > [noun] > exchange > exchange equipment private line1852 bank1884 call-disc1884 howler1886 trunk1889 multiple switchboard1891 rack1893 line switch1898 heat coil1900 relay rack1902 multiple1905 listening key1906 telharmonium1906 wiper1906 preselector1912 line finder1922 rank1924 routiner1928 keysender1929 uniselector1930 wiper arm1933 1906 Chambers's Jrnl. June 495/1 In the telharmonium the qualifying ripples are ingeniously added to the waves of the fundamental note by a separate contrivance. 1934 N.Y. Times 13 Apr. 19/1 Thaddeus Cahill, who invented an electric typewriter and the device for producing music electrically, known as the telharmonium, died suddenly at 10 o'clock yesterday of a heart attack. 1978 P. Griffiths Conc. Hist. Mod. Music viii. 111 The pioneer..was Thaddeus Cahill, a Canadian scientist who demonstrated an extraordinarily bulky ‘telharmonium’ in 1906. This entry has not yet been fully updated (first published 1986; most recently modified version published online March 2018). < n.1906
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