An elementary manual of radiotelegraphy and radiotelephony for students and operators (1916)
Fleming, J. A. (John Ambrose), Sir, 1849-1945 · London, Longmans, Green & co. · leaf 310
. (2) AVe may determine when the wire has the same tempera-ture for oscillations or for steady currents by enclosing it in thebulb of an air thermometer (see Fig. 2). German investigatorshave made a good deal of use of this form of hot wire ammeter,which they generally describe under the name of a… … Fig. 1. In this instrument, a fine wire or number of fine wires areincluded in the bulb of an air thermometer, consisting of aU-tube attached to a bulb, the bend of the tube being filled withsome liquid. When a current is sent through the wire, it heatsthe wire and the air, and forces the liquid up…
Radio · Telegraph, Wireless · Telephone, Wireless
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
