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Maker
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Date
Brass fittings for transducer

Brass fittings for transducer

1965-1966
Brass fittings for transducer

Brass fittings for transducer

1965-1966
Transducer used to transmit ulra-sonic pulses

Transducer used to transmit ulra-sonic pulses

1965-1966
Transducer used to transmit ulra-sonic pulses

Transducer used to transmit ulra-sonic pulses

1965-1966
Gravity switch with one lead for Hecta echo-sounder

Gravity switch with one lead for Hecta echo-sounder

1965-1966
'Hecta' Echo Sounder

'Hecta' Echo Sounder

1965-1966
"Hecta" portable electronic Echo Sounder, consisting of:- 1) Instrument case with switches and dial, 2) Remote dial, 3) and 4) two transducers, and 5) and 6) brass fittings, from the Gipsy Moth IV, sailed around the world by Sir Francis Chichester between September 1966 and May 1967, by Brookes and Gatehouse Limited, England, 1965-1966

'Hecta' Echo Sounder

1965-1966