HAND COMBINATION TRANSMITTERS
Pattern No. B80
Comprises Granular Carbon Transmitter, Receiver (Double Pole), Cord, Switch Key, 4-way Plug, and 4-way Jack.
Hand Micro-Telephone, 4-point for Instruments, etc.
This pattern of Hand Micro-Telephone is the most suitable for all ordinary purposes, including the correspondence installation described on pages Nos. 90 to 93. Instead of being clumsy and heavy, as is the case with so many Hand Micro-Telephones, it is light and neat.