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GEC Muraphone K
The Muraphone K was the wall telephone equivalent of the GEC 1000 Telephone and was released in 1956. The design of its case was identical to the original Muraphone but had a more modern handset (no spittoon) and updated circuitry. The handset is of the hollow handle type, titled Handset No. 1 by the BPO, and accommodates the then newly developed 4T receiver (rocking armature type). The handset is shown below. The circuit is now updated for 1000 ohm lines and has a new induction coil and fitted with two capacitors, instead of the usual single capacitor.
The mur element in the name is taken from the Latin word for a wall.
Colours: Cases in black, plus ivory, red and green. Handset and cords in black, no matter what the case colour.
The Muraphone K saw use on PAX systems installed by the
Reliance Telephone Company, although it would be misleading to
say it was used widely. A number saw service on British Railways
GEC MURAPHONE K
The Muraphone instrument is the most pleasing design of wall telephone. It has the big advantage that the handset must be removed before dialing can begin.
The case is shaped to form a cradle for the receiver and a housing for the transmitter, so that the handset is securely held in a vertical position. The front surface of the moulding accommodates a dial, and this circular motif is repeated at the sides of the moulding by concentric segments. These are provided with outlet apertures for sound from the bell.
All apparatus, including the dial, is mounted on the base, thus complete accessibility is given to all components by simply removing the case. The terminal strip is mounted at the lower end of the unit. The handset cord is anchored to the terminal strip by a tightly fitting rubber bush; this relieves the conductors of any strain from a direct pull, seals the point of entry, and allows the maximum of cord flexibility without the possibility of frayed braiding.
When orders or enquiries are cabled, catalogue numbers will suffice. In written confirmation, please include catalogue numbers and description of apparatus required.
Muraphone "K" telephone (PAX) - note that the top most capacitor is missing but the holders are still fitted.
Close up internal view
Last revised: September 02, 2013