| Volume 1 || 13 Mar. 1876  || Page 52  TD>|
The experiments were upon the whole satisfactory as demonstrating the fact that the timbre as well as the pitch of vocal sounds had been transmitted telegraphically.Noted by A.G.B.
An Automatic Transmitter was arranged as in Fig I so as to enable me to carry
on experiments without the necessity of employing Mr. Watson every moment of
the time. The armatures of A and B were kept in continuous vibrations by the
action of a local battery (L). To the end of B's armature an arch of copper
wire (W) was fastened the ends of which dipped into two water cups or cells a
The Receiving Instrument C was in another room. The armature of C was tuned to be in unison with A and B.
| Volume 1 || 14 Mar. 1876  || Page 52  TD>|