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.Automatic Exchanges
Loudspeaker Equipment
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
readily accessible.
| Code No. | Description |
| N20416 | Telephone with lamp indicator and switch |
| N20417 | Loudspeaker in wood case |
| N20425 | Amplifier for 200-250 volts A.C. supply |
| N20430 | Amplifier for 200-250 volts D.C. supply |
| N20431 | Amplifier for battery operation |
Taken from the Ericsson Telephone Catalogue, edition No. 26, Supplement 1935
| Home page | BT/GPO Telephones | Ericsson Telephones | Ericsson Home Page | Ericsson PABX | All Telephone Systems |