Extension wall telephone for LB systems
Small model without generator or bell
The dimensions refer to the back plate of the telephone. This telephone is designed for use in connection with telephones of type AB and AC. It should be placed where the signals from the main telephone can be heard by the person using the extension telephone. Calls from one telephone cannot be heard in the other. This telephone requires a microphone battery composed of two dry cells RK 210.
A suitable battery case is RK 2300.
Last revised: September 30, 2019