ERICSSON SWITCHBOARD No. OB 400


768.jpg (11731 bytes)Type OB 400
Wall Pattern Switchboards
Metallic Circuit
Local Battery System

OB 400/12 shown

FRAMEWORK
Polished walnut, with the jack field covered with fibre.

EQUIPMENT
1 JACK for each line.
1 OPERATOR'S CORD AND PLUG.
1 PAIR OF CORDS with 2-point plugs ee table for number of cord circuits for each board).
1 SPEAKING AND RINGING KEY for each cord circuit.
1 CALLING INDICATOR for each line.
1 CLEARING INDICATOR for each cord circuit.
1 NIGHT BELL.
NIGHT BELL SWITCH.
GENERATOR. RH 5120, 5-magnet.
MICROTELEPHONE. RE 5052, with Cord RS 7021.
TESTING KEY.

TYPE

OLD TYPE No.

No. of metallic ccts

No. of cord ccts

Height ins

Width ins

Depth ins

Weight in lbs.

OB 400/6

627

6

2

30.50

10.23

9.64

30.87

OB 400/9

628

9

3

33.86

10.23

9.64

33.00

OB 400/12

629

12

4

33.86

10.23

9.64

38.58

OB 400/16

630

16

4

36.69

10.23

9.64

41.89

OB 400/20

631

20

5

37.20

12.00

9.64

48.51

OB 400/25

632

25

5

40.56

12.00

9.64

52.92

OB 400/30

-

30

6

40.56

9.64

9.64

57.33


Taken from the Ericsson Telephone Catalogue 1914

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Last revised: April 29, 2000