TELEPHONE No's 94XX, 98XX & 99XX
Tribune


Tribune (Telephone No. 9401AR)

Features include:

  • Tone dialling only

  • Earth and Time break recall

  • Bell

  • Recall

  • Mute

Colours: Polar White and Charcoal Grey

Approval Number: S/1000/3/F/500318

 

Tribune (Telephone No. 9402AR)

Features include:

  • Tone dialling only

  • Earth and Time break recall

  • Tone caller

  • Recall

  • Mute

Colours: Polar White and Charcoal Grey

Approval Number: S/1000/3/F/500318

 

Tribune (Telephone No. 9403R)
Similar to the 9402 but with inductive coupler.

Features include:

  • Tone dialling only

  • Tone caller

  • Recall

  • Mute

  • Inductive coupler earpiece

Colours:

 

Tribune (Telephone No. 9801AR)

Features include:

  • Tone and Pulse dialling

  • Bell

  • Last number Redial

  • Recall

  • Mute

Colours:

 

Tribune (Telephone No. 9802AR)

Features include:

  • Tone and Pulse dialling

  • Tone caller

  • Last number redial

  • Recall

  • Mute

Colours:

 

Tribune (Telephone No. 9803AR)

Features include:

  • Tone and Pulse dialling

  • Bell

  • Last number redial

  • Recall

  • Mute

  • Inductive coupler earpiece

Colours: Grey and red

 

Tribune (Telephone No. 9804AR)
Tribune E1 model with amplified hearing. Superseded by Telephone 9810AR.

Features include:

  • Tone and Pulse dialling

  • Bell

  • Last number redial

  • Recall

  • Mute

  • Inductive coupler earpiece

  • Amplifying

  • Neon indicator

Colours: White, grey and red

 

Tribune (Telephone No. 9806AR)
Tribune E2 model with watch receiver.  Superseded by 9811AR.

Features include:

  • Tone and Pulse dialling

  • Bell

  • Last number redial

  • Recall

  • Mute

  • Inductive coupler earpiece

  • Watch receiver

  • Amplifying

  • Neon indicator

Colour: White

 

Tribune (Telephone No. 9810AR)

Features include:

  • Tone and Pulse dialling

  • Bell

  • Last number redial

  • Recall

  • Mute

  • Inductive coupler earpiece

  • Amplifying

  • Neon indicator

Colours: White and grey

 

Tribune (Telephone No. 9811AR)
As Telephone No. 9806 but with increased amplification.

Features include:

  • Tone and Pulse dialling

  • Bell

  • Last number redial

  • Recall

  • Mute

  • Inductive coupler earpiece

  • Watch receiver

  • Amplifying

  • Neon indicator

Colour: White

 

Tribune (Telephone No. 9812AR)
Outgoing speech amplification (OSA) model for users with weak voices.

Features include:

  • Tone and Pulse dialling

  • Bell

  • Last number redial

  • Recall

  • Mute

  • Inductive coupler earpiece

  • Watch receiver

  • Amplifying

  • Neon indicator

Colour: White

 

Tribune (Telephone No. 9901R)

Features include:

  • Pulse dialling only

  • Earth recall

  • Bell

  • Mute

  • Recall

  • Last number redial

Colours: Red, Charcoal Grey and Polar White

Approval Number: S/1000/3/F/500318

 

Tribune (Telephone No. 9902R)

Features include:

  • Pulse dialling only

  • Earth recall

  • Tone caller

  • Mute

  • Recall

  • Last number redial

Colours: Red, Charcoal Grey and Polar White

Approval Number: S/1000/3/F/500318

 

Tribune (Telephone No. 9903R)

Features include:

  • Pulse dialling only

  • Bell

  • Mute

  • Recall

  • Last number redial

  • Inductive coupler earpiece

Colours: Polar White and Charcoal Grey
 


Additional Information

Enhanced Tribune
Enhanced Tribune telephones (Telephone No's 9804 to 9812) are based on and offer the same facilities of THE basic 'Dual Signalling' Tribune i.e.:-

  • LD, Mixed or MF (TouchTone) signalling (user switchable).

  • 31 digit (including * & #) last number redial memory.

  • Earth-loop or Timed-break recall (user switchable).

  • Secrecy (microphone cut-off switch).

  • Bell with adjustable volume control and 'off' position.

Number Label Cover
All Tribune telephones have the dial label under the handset on the rear of the casing.

The transparent label cover is removed by levering the cover carefully upwards.

Ringers
Tribunes can have either a bell or a tone caller.  Both can have the volume adjusted by means of the lever on the ringer.  On all models tone callers have a volume control only, whilst bells have a volume control with an off position.  The ringer is on the base.

Bell volume control is achieved by varying the travel of the bell plunger, this can result in bell tinkle due to line disturbances if the bell volume control is set to 'low'.

The Tribune Bell is designed to meet REN 1 requirements when set in the mid (notch) position, due to additional circuitry required for tone callers it is not possible to provide 'Enhanced Tribunes' (98XX models) with a tone caller instead of a bell as the circuit board area is used by the handset amplifier circuit.

Wall mounting
This is a table only telephone.  No wall mounting kits are available.

Memory Retention
There is no provision for memory backup batteries in Tribune telephones, last number memory cannot be guaranteed it the telephone is removed from line for more than 5 minutes.

Dial Modes
Basic Tribune telephones are available in 10 pps pulsing (LD), Tone signalling (MF) and dual signalling (MF and LD) models with earth or timed break recall facilities.

Mixed signalling is the facility whereby a call may be originated in the LD 10 pps mode and continued for the duration of the call in the MF4 mode by pressing the * button to access certain network based facilities.  This is available on AR models only.

There is no facility for storing PBX access pause in the Last Number redial store. PBX access codes may be keyed manually before pressing the 'LR' button on PBXs requiring a pause.

Manufacturer
Made by TMC Ltd (Marked GNA on base) and Denis Ferranti Ltd (Marked DFM on base)

Approval Status
Tribune telephones are approved as supplied under approval numbers:-
Tele 9401 S/1000/3/F/500318 or S/1000/3/F/500331
Tele 9402 S/1000/3/F/500319 or S/1000/3/F/500322
Tele 9801 S/1000/3/G/500643
Tele 9802 S/1000/3/G/500638
Tele 9803 S/1000/3/G/500639
Tele 9804 S/1000/3/G/500640
Tele 9806 S/1000/3/G/500642
Tele 9810 S/1000/3/H/500678
Tele 9811 5/1000/3/K/501499
Tele 9812 S/1000/3/K/501488
Tele 9901 S/1000/3/F/500333 or S/1000/3/F/500321
Tele 9902 S/1000/3/F/500334 or S/1000/3/F/500323


PARTS

Description    BT Item code
Telephone 9401  AR White 877081
Telephone 9401  AR Grey  877082
Telephone 9402  AR White 877087
Telephone 9402  AR Grey 877088
Telephone 9801  AR White 877603 (877597)
Telephone 9801  AR Grey 877604 (877598)
Telephone 9801  AR Red 877605 (877599)
Telephone 9802  AR White 877606 (877600)
Telephone 9802  AR Grey 877607 (877601)
Telephone 9802  AR Red  877608 (877602)
Telephone 9803  AR White  877621
Telephone 9803 AR Grey 877622
Telephone 9803 AR Red 877623
Telephone 9804 AR White   877609
Telephone 9804 AR Grey 877610
Telephone 9804 AR Red 877611
Telephone 9806 AR White  877612
Telephone 9810 AR White 877420
Telephone 9810 AR Grey 877421
Telephone 9811 AR White 877423
Telephone 9812 AR White 877840

 


Technical Information

Line testing
Idle - Normal capacitor loop, additionally Tribunes 99XX & 98XX draw on hook current (typically 20 micro amps) to maintain last number re-dial memory. This may appear to give apparent 'Low Loop' line test conditions.

Seized - Normal off-hook press button telephone loop. The electronic keypad and transmission circuitry may give high resistance tele-loop line test conditions as with other press button telephones.

User Issues
Bell volume control is achieved by varying the travel of the bell plunger, this can result in bell tinkle due to line disturbances if the volume control is set to 'low'. On certain systems (typically those with electronic ringing generators) a louder ring may be obtained if the control is set at the mid point instead of 'loud'.

Pressing the 'S' button will cut off outgoing transmission on all models without affecting incoming speech except for Tribunes 94XX made by DFM Ltd, on these the level of incoming speech is reduced whilst the 'S' button is held down.

Last number redial memory will be erased on LNR models if the telephone is disconnected from line for typically more than 5 minutes, there is no provision for memory retention batteries.

All Tribunes have good immunity against RFI from 100kHz to 10Mhz.

Telephones 9401AR and 9402AR can be converted to Time Break Recall (TBR).  On the underside of the telephone is a small plug, in a recess, which has makings 'E' and 'T'.  The plug must be removed, turned 180 degrees and replaced so that the raised lug of the plug is now nearest the 'T'.

Signalling details
MF signalling, tone stretched (with minimum duration tone bursts of approximately 100 ms).
Timed break recall, approximately 100 ms.
Earth recall, continuous whilst recall button is pressed.

RFI immunity - Good immunity against RFI from l00kHz to 200MHz.

Speech on Enhanced Tribunes
Due to the restrictions of BABT approval, the level of amplification of incoming speech on Tribunes 9804 AR & 9806 AR is much lower than that of the 'Conquest' handset (Amplified handset for 700 type teles).

BT has been granted a relaxation to produce Tribunes 9810 AR & 9811 AR which offer a higher (20dB) level of amplification, with the `normal' setting at the left of the volume control instead of in the mid position.
 

 


 
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Last revised: April 23, 2021

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