Handset with microphone cut off button fitted on one side of earpiece. Handset No. 6 is used with 700 type telephones and on switchboards for supervisory or secrecy purposes.

Grey, black and ivory

Handset No. 6A-2 is fitted with a 6 way cord and is used for controlling dictation equipment.

3 Internal
Issue 2, May 1973

Description and Installation

This Instruction describes Handsets Nos. 6 and 6A-2. They are similar in appearance to the Handset No. 3 but they both incorporate a change-over switch and the Handset No. 6A-2 is supplied with a 6-way cord fitted.
Handset No. 6 is shown above.

The change-over switch (Switch No. 5A) is contained within the receiver cavity, behind the receiver-inset, and is fixed to a bracket with three arms which locate on the three moulded ribs. A separate nylon press-button engages with the switch plunger and projects through a hole in the moulding in such a position that inadvertent operation cannot take place by laying the handset on a flat surface. As supplied the press-button is non-locking but removal of a small screw in the bracket adjacent to the plunger and press-button allows the switch to be either non-locking if the press-button is directly pressed or locking if it is depressed and slid to one side. The screw should be placed in the parking position provided by the threaded hole in the bracket. The switch is wired to a terminal plate in the transmitter cavity.

Handset No. 6 will normally be used to provide transmitter cut-out facilities. The type of cord, which must be requisitioned separately, and the method of wiring are shown in Dgm N 861.

Handset No. 6A-2 will normally be used to provide remote control of dictation equipment. The method of connection to the telephone is shown in Dgm N 4403.

Breakdown of parts for the Handset No. 6.

The Transmitter No. 13C was later superseded by a Transmitter No. 16 which also needed a Part No. 1/DRI/50.


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