TELEPHONE No. 396

Combined, Bakelite cased, table telephone used by the BPO in CBS No's 1, 2, 3 & Magneto areas on private circuits without transmission feeds and in mobile vans.

This telephone had a tray for the subscribers personal directory but as from June 1940 the tray was not fitted and instead the telephone was supplied with a Tray, Dummy, D62099 (a blank plate). This was probably a war time cost saving, as in late 1947 the tray was re-introduced.

Available in the colours - Jade green, Chinese red, Black and Ivory.

This phone shown in the picture would have been connected to a scrambler unit and the handset has been changed to a green variant to identify that the phone could be switched to scramble the speech.

Mark 1 - has a Receiver, Inset No. 1L in the handset and switch bracket with plungers of the early type.
Mark 1A - has a Receiver, Inset No. 1L in the handset and switch bracket with plungers of an improved type.
Mark 2 - has a Receiver, Inset No. 2P in the handset and switch bracket with plungers of the early type.
Mark 2A - has a Receiver, Inset No. 2P in the handset and switch bracket with plungers of an improved design.

Supplied to the BPO by Ericsson, their Model N8440.

Pictures courtesy of Ian Nichol.

Adjustment of Magneto bells

Circuit diagram - N496.

Diagram for Button labels - N620.

Drawing No. 63022 - Telephone components parts.
Drawing No. 63023 - Chassis components.
Drawing No. 63250 - Chassis components (improved switch hook buttons).
Drawing No. 90319 - Telephone parts (Mk 3A).
Drawing No. 90373 - Chassis components (improved switch hook buttons).
Drawing No. SBA12 - 300 type base plate.
Drawing No. SCA17 - 300 type complete case.
Drwaing No. SCA20 - 300 type case.
Drawing No. SCA47 - 300 type complete case (improved switch hook buttons).