Ericsson Other WallPhones and Intercoms 2

Fig 14: Battery Ringing Telephone BC1100 , the OST equivalent of the Model BC1300. From 1892 to the early 1900s when the OST receiver was dropped in favour of handset models. Old Number 410. 345mm high.

Fig 15: Battery Ringing Telephone BC1200 . Polished walnut backboard, separate transmitter & spoon receiver. Push button ringing. Old number 415. 1895-1911 and an earlier Model BC133 1892. 345mm high.

Fig 16: Battery Ringing Telephone BC1300-1301. Walnut backboard, handset on a switchhook. Old No. 405. Model 1301 has a fixed hook and a press-switch handset. Old No. 406. 1892-1913. 250mm high.

Fig 17: Intercom HA100 : Press-switch handset on a fixed hook, with a basic rotary switch on walnut backboard. 10-line and 20-line models available. Old Model No. 760 and 761. 1895-1932

Figs 18 and 19: Intercom No. 768 - 770 . Similar to the Model HA100 with facilities for more extensions. Old No. 768 10 extensions, No. 769 with 15 extensions, No. 770 with 20 extensions (Fig 19)

Fig 20: Intercom HA220 / HA230 . A basic steel-cased intercom. Intercom switching is controlled by the rotary knob at the bottom of the case.
This model does not appear in the 1911 catalogue so its likely dates of use would be approximately 1912-1919. It is shown in an Australian catalogue.

Fig 21: Model CD1140 , a small steel-cased CB wall phone equivalent of the CD1110. Finished in black enamel, 1911. British No.N1480. 220mm high.

Fig 22: Model N1090 produced at Beeston in Britain. Slightly more compact than the DE110, and issued with the new bakelite handset as well as the older style.

Fig 23: Model N1130, the handset version of the N1120 intercom. It was updated to the bakelite handset around 1933 and the model was then redesignated as N1030A.

Fig 24: Model N1170-1172, developed for British railways. It uses push-button signalling and a solid back transmitter. Model N1170 does not have the pushbuttons, and has been seen with a more cylindrical bell. Model N1115 has the transmitter inset into the case. These models were not used in Australia. There are many similar Railways phones.

Fig 25: Model AB125, a basic small wooden box phone with the old handset (British Model N2200C) or with the later bakelite handset (N2200B)

Fig 26: Intercom Model N1110. Oak case, watchcase earpiece, fixed transmitter, basic switchhook. Model N1115 has the later inset transmitter. There are similar designs from many other firms like Sterling, Siemens and Peel Conner. Similarly styled metal-cased sets are usually from the United States. C1900

Fig 27: Intercom Model N1120 , similar to the N1110 but designed for longer lines, both two-wire or earth return. Model N1180 is the same
externally, but has a relay inside to switch on a bell-ringing circuit. This made it more suitable for weak line currents.

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