Record

Reference numberPP/10/15
Previous numbersPP/42/15
LevelItem
TitlePaper, 'A thermal telephone transmitter' by George Forbes
Date1887
DescriptionForbes writes: 'We have had so much evidence of the sensitiveness of the Bell telephone receiver to the minutest changes of current, that we have ceased to be surprised at any transmitter which responds to the sounds of articulate speech. But, in the instrument now shown, it was so extremely unlikely that sensible variations of current could be produced with sufficient rapidity, that even now there is perhaps some interest attached to the experiment. A wooden cylinder was used closed at one end.'

Annotations in pencil and ink.

Subject: Engineering

Received 12 February 1887. Read 24 February 1887. Communicated by Lord Rayleigh [John William Strutt].

A version of this paper was published in volume 42 of the Proceedings of the Royal Society as 'A thermal telephone transmitter'.
Extent3p
FormatManuscript
Physical descriptionInk and graphite pencil on paper
Digital imagesView item on Science in the Making
Access statusOpen
Related materialDOI: 10.1098/rspl.1887.0026
Fellows associated with this archive
CodeNameDates
NA7125Forbes; George (1849 - 1936); engineer1849 - 1936
NA6090Strutt; John William (1842 - 1919); 3rd Baron Rayleigh1842 - 1919
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