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Description: 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).
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"