SIEMENS BROTHERS No. 318

BATTERY CALL TELEPHONE

No. 318 (Neophone)
Table telephone in black moulded Bakelite case. Comprising anti-sidetone induction coil (ASTIC); high efficiency "Neophone" hand micro-telephone with patented immersed electrode inset transmitter, calling button, buzzer and 4'  6" (1371mm) flexible cord, with four-way terminal block or four-way plug.

Electrically similar to the wall equivalent the No. 319.

These telephones can be connected together to form a two-way intercom telephone system.

Four primary cells are required at each telephone and these would be located external to the telephones.

These telephones cannot be connected to an exchange line.

Height: 8" (203mm)
Depth: 6" (152mm)
Width: 9" (229mm)
Weight: 4.5 lbs (2.04kg)

From the SIEMENS BROTHERS & CO. LIMITED catalogue No.500/54

Additional Information

The Telephone No. 318 was fitted with a press button in the middle of the dial blank plate and a DC buzzer in the base.  No ringer mechanism or bells were provided with this set.

Note dummy dial with a central press button
Close up of the phone body

  Wiring Diagram

Last revised: February 07, 2023

FM2