TELEPHONE No. 39 | |||||||
Telephone, House, Wall,
Direct Call, Intercommunication, secret, 5 way. Used in conjunction with the single way Telephone No. 37. Telephone includes (1928):- Handset is a Telephone No. 32. Circuit Diagram - TL 232. Circuit Diagram - N139. Made obsolete in 1947. Information on all House telephone systems
|
|||||||
Last revised: February 05, 2023FM |