Audio Amplifier

The IEC mains operated amplifier is a general purpose audio amplifier and is fitted with a speaker suitable for the classroom. It is complete with both a mains power ON/OFF switch and a speaker ON/OFF switch. Input signal can be via a 3.5mm diameter phone jack (low level signal) or via standard 4mm sockets (higher level signal).When the phone jack is used from a microphone or other signal source,the maximum input signal should not exceed 20mV or distortion will occur.When the 4mm sockets are used,signal levels up to 200mV can be applied. Two 4 mm sockets are provided for connection to a CRO.