Figure 10. Hindle No. 2 Galvanometer Unit
Manufacturer: Charles Hindle, Ossining, New York.
Date made: 1918 - 1925.
It looks as if 3 electrodes could be attached.
Battery powered.
Camera unit is mounted on a separate stand.

The above picture is used with permission of The Bakken Library and Museum, U.S.A.
Yukarıdaki resim, A.B.D.'deki The Bakken Library and Museum'dan izin alınarak kullanılmıştır.





Figure 11. Cambridge Model 3 Electrocardiograph.
Manufacturer: Cambridge & Paul Instrum. Co. of America
Date made: 1922 - 1923
It looks as if 3 electrodes could be attached.
Battery powered.

The above picture is used with permission of The Bakken Library and Museum, U.S.A.
Yukarıdaki resim, A.B.D.'deki The Bakken Library and Museum'dan izin alınarak kullanılmıştır.






Figure 12. ECG by Boulitte, string galvanometer, floor model.
Manufacturer: G. Boulitte, Paris, France.
Date made: 1918 - 1925.
It looks as if 3 electrodes could be attached.
Most likely battery-powered.

The above picture is used with permission of The Bakken Library and Museum, U.S.A.
Yukarıdaki resim, A.B.D.'deki The Bakken Library and Museum'dan izin alınarak kullanılmıştır.





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