SIEMENS & HALSKE No. 4092

No. 4092
Wall telephone for magneto call similar to No. 4091, but with 1600 ohms resistance of bell, for calling across about 75,000 ohms.

See also Telephone No. 4094.

Taken from the Siemens & Halske Telephone Catalogue 1912

 

 
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Last revised: May 05, 2023

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