TELEPHONE No. 88


Original model	Interim model

Known as 'The Corporation Set' (because many were supplied to Municipal owned systems) this is the GPO version of the National Telephone Companies NT No. 13 model. The telephone was supplied with a magneto bell and generator and was used on C.B.S. and Magneto lines.

The GPO model had a wooden top whilst the steel body was printed with a wood grain finish. Whereas the private models had transfers on the front of the case the GPO version had an instruction notice frame. The Telephone No. 90 is the same as the Telephone No. 88 except it does not have a generator.

The later GPO variant (shown above right) had a Telephone No. 164 as a handset. This was an interim modification as the original handset, Telephone No. 28, was a major source of complaints about faint speech. It was eventually decided to replace the whole set instead offering the customer the choice of a Telephone No. 4 or Telephone No. 11. If the customer would pay the extra rental charge then they could opt for the Telephone No. 162. See the Telephone Efficiency Committees Report on Local Battery Area telephones.

Early table telephones were connected to the internal wiring with a Strip, Flexible Cord Connection. Click here for more information.

Circuit Diagram - N188 (dated 1917). The NTC version predates the diagram by at least 5 years.

Circuit Diagram - C.B.S. 232 - This diagram shows the modification of N.T. No. 1 and No. 13 telephones to a GPO standard. These were formally named "Instruments, Subscribers, Table, N.T. No's 1 and 13" which were renamed as the Telephone No. 88.

Made by British Ericsson, their model AC300. The Municipals purchased their telephones directly from L. M. Ericsson in Sweden as the UK refused to supply them.

Telephone includes (1914, 1915 and 1928):-
1 x Cord, Instrument No. 604 or 606.
1 x Cord, Instrument N.T. No. 56.
1 x Handle, Generator No. 17.
1 x Strip, Flexible, Cord Connection, 7-terminal.
1 x Telephone No. 28.

Marks I.S.T.J., I.S.T.K. and N.T. 8 include:-
1 x Block, 7-terminal.
1 x Cord, Instrument No. 606.

Mark I.S.T.J. includes:-
1 x Jack, 4-way, special.
1 x Plug No. 406.

Additional Pictures