TESTER AT 5422
The Tester AT 5422 is used on large PABX's and some small exchanges (when a test desk is not fitted).  It is normally associated with a Tester No. 43.

This tester requires 67.5 volt (Battery, Dry No. 18) and 1.5 volt (Cell, Dry DS6) batteries.

To be requisitioned separately:-
1 x Battery, Dry No. 18.
1 x Cell, Dry DS6.
1 x Tester No. 43 or 43A.


To be requisitioned separately as required:-
2 x Cords, Instrument No. 3/95F Blk., T 2".
9' 0" x Cordage, Instrument No. 12/AJ, Grey.
1 x Connector No. 202A 15A.
1 x Clip No. 61B.
2 x Plugs No. 316.
10 x Parts No. 1/STA/13.

EI - Telephones, Automatic T1012

Drawing - 70456

Diagram - ATW54220

Diagram Notes - AT5422

 
 
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Last revised: July 30, 2025

FM