RECEIVERS, HEADGEAR

Used in exchanges and consists of two receivers.  The Receiver, Headgear No. 1A receivers are 60ohms each and the Receiver, Headgear No. 1B receivers are 150ohms each.

Includes:-
1 x Diaphragm No. 12, 18 or 24.
1 x Headband No. 6.
1 x Earpiece No. 2, 9, 13 or 17.
1 x Pad, Receiver Headgear No. 3.

To be requisitioned Separately:-
1 x  Cord, Instrument No. No. 2/04A, Brown, 21" or 4/12A, Brown, 48".
1 x Headband, No. 7 (when required).

Drawing - 1994.

Superseded by Receivers, Headgear No. 10A.

This consists of two receivers.  The Receiver, Headgear No. 3A receivers are 60ohms each and the Receiver, Headgear No. 3B receivers are 150ohms each.

Includes:-
2 x Diaphragm No. 12 or 24.
1 x Headband No. 9 or 12.
2 x Earpiece No. 2, 9, 13 or 17.

To be requisitioned separately:-

1 x Cord, Instrument No. 4/19A, Brown, 84" or 4/36A, Brown,
84" (for Mk. 236).

Superseded by Receivers, Headgear No. 10A, Double

Drawing - 62820.

This consists of two Receivers, of 4000ohms each, in series.

Includes:-
2 x Earpieces No. 11.
2 x Diaphragms No. 21.
1 x Cord, Instrument No. 236.

Fitted with two Receivers, of 60ohms each, in series.  S.G. Brown Type.

Used in Wireless Stations where a Jack No. 1 is fitted.

Includes:-
2 x Earpieces No. 16.
1 x Cord, Instrument No. 236.

Sensitive receiver for use with Potentiometer No. 8B at phonogram operators' positions.  Also for use as alternative receiver at subscribers when required.

Includes:-
1 x Diaphragm No. 12.
1 x Earpiece No. 20.
1 x Headband No. 6.
1 x Pad, Receiver H.G. No. 3.

To be requisitioned separately:-
1 x Cord, Instrument No. 2/04A, Brown, 21" or 4/12A, Brown, 48"
1 x Headband No. 7 (when required).

Superseded by Receivers, Headgear No. 10A

Receivers, Headgear, No. 10A, Single
General purpose Receivers, Headgear with one 60ohm receiver.  These were used at local exchanges and with Potentiometers No. 8B on phonogram operator's positions.  Also for use as alternative receiver at subscribers when required.

Includes:-
1 x Diaphragm, No. 25.
1 x Earpiece, No. 22.
1 x Headband, No. 6.

To be requisitioned separately:-
1 x Cord, Instrument No. 2/04A, Brown, 21" or No. 4/12A, Brown, 48".
1 x Headband, No. 7 (when required).
1 x Pad, Receiver H.G. No. 3.

Superseded the  Receivers, Headgear No. 1A and No. 9A and was itself superseded by the Receivers, Head Gear No. 16.

Drawing - 62790 (Mark 3).

Receivers, Headgear, No. 10A, Double
This consists of two Receivers H.G., No. 10A fitted with Headband No. 12, instead of Headband No. 6 and Pad, Receiver H.G. No. 3.

To be requisitioned separately as required:-
1 x Cord Instrument 4/36A, Brown, 48".

Drawing - 90535.

This consists of two Receivers of 1000ohms each in series.

This consists of a receiver of 2000ohms with a folding headband.

For use with Tester WL 53400.

Includes:-
48" Cordage.
1 x Plug (Multitone's miniature 2-pin phone plug).

Superseded by the Receivers, Headgear No. 16T in 1961.

Drawing - 63982.

These headsets could be supplied with single or double receivers.

The No. 16T (shown to the right - disregard the cord and plugs) uses receivers of 24ohms (Receiver, Inset No. 3T) whilst the No. 16U uses receivers of 600ohms (Receiver, Inset No. 3U).

These headsets were supplied without a cord allowing the appropriate cord to be chosen dependent on use.

The No. 16T single, is usually used with an oscillator, in which case a Plug No. 420 with Cord 2/138AB 54" should be used.

Colours: Black and Grey.

Includes:-
1 x Headband No. 13 (double receiver headband).
or
1 x Part No. 1/DHE/7 (single receiver headband)

Drawing - 91125, 91126 and 92627.

STC Part No. 4048 (Receivers, Headgear No. 16T Single).

Used with the Tester No. 132 (consists of Oscillator No. 87 and Amplifier No. 109).

Cannot be used with safety helmets.

Used with the Tester No. 132 (consists of Oscillator No. 87 and Amplifier No. 109).

Used with safety helmets.