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TEL/15M, TEL/16M and TEL/21M

Click here for more information on the Muraphone

Click here for the original Muraphone

Click here for information on how to convert your Muraphone to Plug and Socket

Click here for the Muraphone K circuit diagram

GEC Muraphone K

tel15aws.jpg (16957 bytes)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.

Users:  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 for instance.

Known Issues:  The Chrome plated switch hook lever arm is prone to breaking due to age.  If purchasing a phone ensure that this is intact.


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.

Please state on enquiries and orders :-

  • Catalogue Number.
  • Colour.
  • Character dial can be ordered.
  • Whether 300-ohm shunt is required across transmitter.
  • Whether dust cover is required for dial.
  • Catalogue Number of Extension Bell, if required.
  • Unless otherwise specified, dials are numbered:- 0, 9........1.

When orders or enquiries are cabled, catalogue numbers will suffice. In written confirmation, please include catalogue numbers and description of apparatus required.

For component parts, please refer to the item by name and quote the Catalogue Number of the complete instrument.

Catalogue Number Standard  Tropical
Muraphone "K" automatic TEL/15M/AWS TEL/16M/AWT
Muraphone "K" C.B. TEL/15M/CWS TEL/16M/CWT

Text taken from GEC publicity leaflet STL 13

The table equivalent is the TEL/9T.




Diagram KS13081 (A issue)

Muraphone "K" telephone (PAX) - note that the top most capacitor is missing but the holders are still fitted.

External view Internal view

Close up internal view


This is the tropicalised variant
Externally, all the range look similar






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Last revised: October 14, 2022