Plant of Strowger type, with equipment for 8000 lines, and ultimate capacity for 10,000 lines, located on two floors; power plant includes two 25-cell (50-volt) 8000-amp.-hr. batteries.
Bishopsgate auto. exchange
Post Office Elec. Engrs. Jl
Post Office Electrical Engineers Journal ; 21 , Part 2 ; p 109-111
1928
3 pages
2 Figs.
Aufsatz (Zeitschrift)
Englisch
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