ATM TELEPHONE L.11186
STROWGER WALL AUTOMATIC TELEPHONES
Wall telephone, with integral bell, that's very much like the Siemens Brothers 366. Bakelite cased with standard GPO style circuitry. Generally fitted with an ATM dial No. 24.
When opening the case, release the two screws on the front cover and then pull them towards you are far as they will go. They will not come out completely but if you do not pull them towards you then they will catch on the casing as the cover is swung open. When closing the case it is also important to ensure the screws are pulled out.
Wiring a new style BT cord to a phone with diagram L530315A or L523602
Earlier model shown above - identifiable by the square
Straight from the skip - thanks to Dave Dockerill for the pictures
Circuit diagram for Telephone L1186B9 and L11186A9
Last revised: March 22, 2022