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Automatic Telephones
N 1002 Type
This, the most modern and improved automatic table telephone, is embodied in a moulded
Bakelite case.
The design is distinctive and pleasing and incorporates a form of cradle or
micro-telephone rest which is not readily damaged.
The interior apparatus including a magneto bell is mounted on a frame which can be
removed as a unit, so that the sets are self-contained.
There is a sliding instruction tray with directory pad accommodation combined in the
base plate. Pads are easily inserted and are included only when ordered.
The reception and transmission efficiencies of the Bakelite micro-telephone with inset
transmitter and detachable receiver are vastly superior to the solid-back type, and the
anti-side-tone induction coil in the circuit reduces the reproduction of extraneous noises
and side-tone to a minimum. Terminal blocks have raised ribs to minimise surface leakage.
If required, a radio interference suppression unit can be supplied, for which provision
for fitting exists in each set.
This telephone is normally produced in black, but if specially ordered it can be
supplied in Chinese Red, Ivory or Jade Green.
Instruments can also be obtained without the
sliding tray fitment.
Micro-telephone cord N4021
Inset N7752
Mouthpiece N8634
Receiver N6819
Earpiece N4443
Receiver diaphragm N4400
Terminal block cord N4317
Overall dimensions 9.25 x 8.25 x 6 inches
Weight 6 lb.
Introduced around 1938.
Taken from the Ericsson (ETL) Telephone Catalogue, edition No. 49
(With additional information added)
Ericsson Supplied Models
| Code No. |
Description |
| N1002A |
Black Bakelite with sliding tray and non-director dial |
| N1002A27T |
Mottled Walnut finish |
| N1002H23T |
Red cased, tropicalised , without a sliding tray |
| N1002H |
Black Bakelite without sliding tray, with non-director dial
(Black), supplied to Telephone Rentals |
| N1002H05 |
Black Bakelite without sliding tray, with non-director dial,
supplied to Telephone Rentals |
| N1002H20 |
Black coloured with a Phoenix Telephones Co. transfer on the
case, under the handset |
| N1002H35 |
Black Bakelite without sliding tray, with Arabic dial |
| N1002H54T |
Green cased, tropicalised, without a sliding tray |
| N1002H75T |
Black cased and fitted with a chrome surround where the two
cords exit the casing |
| N1002H73T |
Ivory without sliding tray, with non-director dial (vent
fitted in front of handset) |
| N1002H74 |
Black Bakelite, supplied to Telephone Rentals |
| N1002H81T |
Ivory coloured and tropicalised. It has a vent plate in
front of the handset |
| N1002HZ |
Black Bakelite without sliding tray, with non-director dial
(Stainless), supplied to Telephone Rentals |
| N1002L |
Black Bakelite with sliding tray and director area dial |
British Post Office Variants
| Code No. |
Description |
P.O. No. |
| N1002B |
Black Bakelite with sliding tray and non-director dial |
332F |
| N1002H |
Black Bakelite with no tray (ETL Diagram N53649) |
332 Mk1 |
| N1002M |
Black Bakelite with sliding tray and director area dial |
332L |
| N1002B20 |
Black Bakelite with sliding tray, with non-director dial |
332F Mk2A |
| N1002M20 |
Black Bakelite without sliding tray, with director dial |
332L Mk2A |
Australian Variants
| Ericsson No. |
APO No. |
Colour |
Features |
| N1002K |
332AT
|
BLACK |
DRAWER |
| N1003K20 |
332AT
|
BLACK |
DRAWER |
| N1002K21 |
332AT
|
BLACK |
DRAWER |
| N1002K22 |
332AT
|
IVORY |
DRAWER |
| N1002K23 |
332AT
|
BLACK |
DRAWER |
| N1002K24 |
332AT
|
IVORY |
DRAWER |
| N1002K25 |
332AT
|
IVORY |
DRAWER & CARRYING HANDLE |
| N1002K26 |
332AT
|
BLACK |
DIE CAST BASE |
Other different variations on the N1002 were made for the world and home markets.
How to convert a
N1002H54T to work in the UK
(Diagrams N56352 & N53649)
This conversion requires a UK Telephone Line
Cord, a 3.3K Resistor and a Rectifier Element.
- Remove and discard any existing line cord.
- Remove any link between Terminals 10
and 11.
- Remove any link between Terminals 1 and
2.
- Insert a 3.3K Resistor between
terminals 1 and 2.
- Connect the white wire of a UK line
cord to Terminal 1.
- Ensure there is a link between
terminals 11 and 12.
- Ensure there a link between Terminals 8
and 9.
- Connect the red wire of a UK line cord
to Terminal 9.
- Connect the blue wire of a UK line cord
to Terminal 12.
- Insulate the green wire on the UK line
cord.
- Connect the Rectifier Element between
Terminals 5 and 6.
 Ericsson
made the N1002 in many variants. The basic telephone was the same but
there were minor modifications made to suit different customers.
An unusual model is the N1002K25 shown here which was supplied to the
Australian Post Office as their 332AT
. Note the carrying handle.
Additional Pictures
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| Model N1002H54T |
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| Model N1002H54T front view |
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| Model N1002H54T - Close up of the air vent |
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| Model N1002H54T - internal view |
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| Model N1002H54T - Paster diagram N56352/3 |
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| Model N1002H35 |
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ERICSSON
