Rubens' Tube Amplifier

This stand alone Amplifier will take either a signal generator input or a stereo (audio) signal input and drive a Rubens’ Tube speaker up to 2.8 Watts (4Ω). The signal generator input is via two 4 mm sockets located on the left side of the unit. The stereo input is via a 3.5 mm jack socket again located on the left side of the unit, this socket can be used to input both music and audio sources from devices such as an iPad or Mobile etc., a 1.2 m stereo input cable is provided. The speaker output is via two 4 mm sockets and the output level is adjusted by a volume control, both located on the right side of the unit.

A mains adapter is also provided to power the Amplifier at the required 5 V DC, the input power socket is located on the left side of the unit, this adapter is suitable for a mains supply ranging from 90 V AC to 260 V AC (50 to 60 Hz).