Signal Training Volume III, Pamphlet No. 1, Telephone Sets D Mk III, 1926

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Signal Training Volume III, Pamphlet No. 1, Telephone Sets D Mk III, 1926 - Title page.jpg
The Signal Training Volume III, Pamphlet No. 1, Telephone Sets D Mk III*, 1926 was issued by the War Office in October 1926. The pamphlet is 16 pages long and gives a general description of the set, electrical details, circuits, tests and adjustments and general care instructions.

Pages Gallery

  • Diagram 1 - Telephone Set D Mk III*

  • Diagram 2 - Parts of Telephone Set D Mk III*

  • Diagram 3 - Wiring diagram

  • Diagram 4 - The microphone

  • Diagram 5 - The watch receiver

  • Diagram 6 - The hand set