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Diagram - Telegraph Instrument Connections, 1874 Reg. No: HT 16094
- Diagram showing the method by which connections are made in telegraph instruments at both terminal and intermediate stations on the closed and open circuit systems. In each case the connections between the batteries, relay, register, key and lightning arrester are shown.
Published by the Chief Electric telegraph Office in 1874
- Folding lithographed sheet- approximately A3 size.
|Dimensions:||282 mm (Width), 465 mm (Length)|
|Tagged with:||circuits, telegraphy|
|Themes this item is part of:||Telegraphy Collection, Information & Communication Collection, Public Life & Institutions Collection|
|Inscriptions:||Text above diagram:
"DIAGRAM/Showing method by which connections are made in Instruments at both/Terminal and Intermediates Stations on the CLOSED and OPEN Circuit."
Text at lower right:
"Sands & MacDougall, lith, Melbourne"