Electronic computer

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Electronic computer. A hand -held digital computer designed to solve all major navigational problems. Facilities are provided for battery or mains operation. Contained in a wooden protective case. Two instruction manuals.
Inscriptions:
On face: NC77.
Label inside battery compartment:1UOO4375

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Object Details

ID:	NAV0090
Type:	Electronic computer
Display location:	Not on display
Creator:	Tamaya & Co Ltd
Date made:	1982
Credit:	National Maritime Museum, Greenwich, London
Measurements:	150 mm x 200 mm x 120 mm
Parts:	Electronic computer Electronic computer box (NAV0090.1) NC-77 Dialogue Symbols (Leaflet) (NAV0090.2) Semidiameter (S.D.) of the Sun and Horizontal Parallax (H.P.) of Venus and Mars (Leaflet) (NAV0090.3) Tamaya Digital Navigation Computer NC-77 Warranty (Leaflet) (NAV0090.4) Tamaya Digital Navigation Computer Instruction Manual (Instruction manual) (NAV0090.5) Tamaya Digital Navigation Computer Instruction Manual (Instruction manual) (NAV0090.6) Tamaya Digital Navigation Computer Instruction Manual (Instruction manual) (NAV0090.7) Sleeve (NAV0090.8) Box base (NAV0090.9) Astro-navigation Piloting & Dead Reckoning (Booklet) (NAV0090.10) LCD Computation Chart Tamaya Digital Navigation Computer NC-77 (Leaflet) (NAV0090.11)