Loudspeaker equipment comprising a telephone with a lamp indicator, and a switch in the base for switching on and off, a loudspeaker of serviceable design, and an amplifier for amplifying the speech from the microphone.
The microphone for loudspeaking purposes is fitted behind the dial of the table telephone.
The amplifier unit is housed in a portable cabinet and arranged so that all parts are
Taken from the Ericsson Telephone Catalogue, edition No. 26, Supplement 1935
Last revised: October 07, 2019