Autema

K4900 - TELEPHONE AMPLIFIER   This telephone amplifier may be used as a freestanding amplifier with speaker, e.g. to listen to a telephone conversation, or the output may be connected to an amplifier or mixing panel (e.g. radio stations).  Specifications input: isolation transformer interface speaker output: 0.5W / 8ohm line output: 0dB (0.775Vrms) power supply: 7 - 9VAC or 9 - 12VDC / 150mA PCB dimensions: 63 x 52mm (2.5" x 2.1") recommended housing: G416 or WCAH2853 recommended transformer: 2090060M recommended adapter: PS1203  Downloads   - Info Sheets Infosheet_K4900_mixingmodule.pdf (14 kB) Infosheet_K4900_standalone.pdf (19 kB)