The development the Home
model opened the way series designs which the length
of the mandrel assembly was shortened. His recording experts now knew more about
recording the human voice and achieving loud and distinct
playback.) effort was made
to make the business phonograph any easier use than the
amusement phonograph and there was correction device nor
means measuring the length the dictated message. ■
*
" (See Illus 11-2, Graphophone ad.)
The Edison business phonograph 1905 was not
specifically designed for the business user. This was the general arrangement of
the Edison business phonograph, which still retained the wooden
base the amusement model.
Finally, the basic phonograph format had evolved into a
lighter, more compact machine. According to
Durand, its basic format was different from the graphophone,
the dictating machine that had first been introduced the
1880s.XI- 2
that was essential succeed this business.
When Edison re-entered the business machine field in
1905, his laboratory staff had improved the orginal phonograph
format considerably. (Illus 11-1. The new
Edison product was priced $70, significantly less than the
$100 $150 price range the nineteenth century but still
$10 more than the price the Graphophone. The Standard and Gem
models had short mandrels with the drive screw assembly
parallel and its rear. The introduction the minute cylinder was
especially suited for the dictation business letters.
