Telegraphone recording wire (1 risultati)
Editore: Smithsonian Institution, Washington 1901
Da: Cosmo Books, Shropshire., Regno UnitoCosmo Books
Contatta il venditoreVenditore con 5 stelleCondizione: Usato - Molto buono
EUR 13,01
EUR 13,79 spedizioneSpedito da Regno Unito a U.S.A.Quantità: 2 disponibili
Booklet - Unbound Pages. Condizione: 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 i…ts 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.
