Instruction manual with technical specifications, installation details, servies instructions and circuit diagrams.

High-resolution circuit diagrams and part list. Official Eddystone document of unknown publication date.

Scan of the original Instruction Book that came with the Eddystone Communications Receiver Type 640. Includes technical specifications, installation and operation details, alignment instructions, servicing data, part list and circuit diagrams.

Revised and redrawn circuit diagram, including part list and test voltages. Made by T.M.

Instruction manual with specifications, general set description, installation and operation, circuit diagrams and maintenance + alignment details.

Official parts list. Typed document from March 1954 for the Eddystone 700 / IMR54. Includes written corrections and amendments from 1953 and 1954.

High resolution circuit diagram and mods for the Eddystone 700 / IMR54.

Official International Marine Radio Company Limited, Croyden England manual. Contains general description, technical specifications, operating and installation instructions, alignments and fault checking and component list.

Handbook for marine all-wave communications receiver type IMR.54. Contains general description, technical specifications, operating and installation instructions, alignments and fault checking and component list. Also included are plan views and circuit diagrams.

Completely redrawn circuit diagrams and voltage tables by Andy Davies, GW0JXM. Includes parts list, component identification, test point voltages, underside view of chassis and overview of band change switch. Excellent document!

Redrawn circuit diagram on A3 format. Source and copyright unknown.

Instructions, specifications, installation & operation and servicing information including circuit diagrams.

Instructions, installation and alignment details, circuit diagrams.

Instruction Manual, Installation Detail, Services Instructions and Circuit Diagram.

Instruction manual, servicing instructions and circuit diagram