Schematic · 1944

E-75159 10-Line Isolated PAX, 24 Volts, circuit explanation

Circuit explanation of a small 10-line AE PAX at 24 V: the closest published analogue to a 3-phone home PBX.

Author: Automatic Electric Co.
Year: 1944
Type: Schematic
Credit: Telephone Collectors International (TCI) Library, telephonecollectors.info (retrieved via Internet Archive Wayback Machine)