Sonotone 1010

the Sonotone 1010  hearing aid  yagiye hanze taliki 29 Ukuboza 1952. Icyo cyari igicuruzwa cya mbere cy’ubucuruzi gukoresha transistor, zari zaravumbuwe imyaka itanu mbere ya 1947.

Byari igishushanyo mbonera, ukoresheje miniature ya vacuum ebyiri nkicyiciro cyo kwinjiza hamwe na tristoriste imwe nkibisohoka; ibi byasabwaga kuko tristoriste icyo gihe yabyaye urusaku rw'amashanyarazi cyane. Ndetse ukoresheje transistor imwe yongerewe cyane igihe cya bateri, kugabanya igiciro cy'imikorere y'ikigo. Mugihe transistor yateye imbere, ubu bwoko bw'icyuma cy'amatwi bwasimbujwe n'ibyuma by'amatwi byose bikoresha transistors. 

Isosiyete ya Sonotone yari ifite icyicaro cyayo mu mujyi wa New York kandi yashinzwe mu 1929.  Isosiyete yaguzwe n’andi masosiyete atandukanye kandi ntiyari ikiri mu bucuruzi mu 2005.