Telegraphone recording wire (1 Ergebnisse)
Verlag: Smithsonian Institution, Washington, 1901
Anbieter: Cosmo Books, Shropshire., Vereinigtes KönigreichCosmo Books
Verkäufer/-in kontaktierenVerkäufer/-in mit 5 SternenZustand: Gebraucht - Gut
EUR 13,18
EUR 13,97 VersandVersand von Vereinigtes Königreich nach USAAnzahl: 2 verfügbar
Booklet - Unbound Pages. Zustand: Very Good. Hammer introduces the telephonograph (or telegraphone), an early magnetic soundâ'recording device, explaining its mechanism and potential applications. 6 Pages. An authentic standalone article, extracted from a larger volume. Not a reprint or reproduction, but an original work in its…own right. Preserved in a modern card cover, prepared for practicality - an unassuming but serviceable presentation that favours function over finery. Size: 16 x 24 cms. Category: Smithsonian Institution; Cosmo Books : 29 years on ABE, 47 years taking care of customers. A bookseller you can rely on.
