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Hydrophone, Type MkII

Hydrophone, Type MkII

1916
Hydrophone insert for streamer

Hydrophone insert for streamer

Sonic hydrophone with cable reel

Sonic hydrophone with cable reel

Hydrophone with Xylonite baffle

Hydrophone with Xylonite baffle

1915-1921
Section of Marine Hydrophone Cable

Section of Marine Hydrophone Cable

Hydrophone, P.D.H. MarkI, with Xylonite baffle, Y piece, first devised by William Henry Bragg and Ernst Rutherford.

Hydrophone with Xylonite baffle

1915-1921
Deep-sea hydrophone, oil-filled, pressure compensated.

Deep-sea hydrophone

1920
Hydrophone drifter set, complete, telephone headpiece, transformer & condenser

Hydrophone drifter set

1916
End section of marine hydrophone cable, electrical connectors, oil filler plug and transformer group

End section of marine hydrophone cable

Type 719 hydrophone and reflector

Hydrophone and reflector

1950-1959
Two crystal inserts (hyprophone units) for hydrophone streamer. 5x4 diam cm

Two crystal inserts for hydrophone streamer

Sound range hydrophone

Sound range hydrophone

1950-1959