An audio ampli?er with approximate overall voltage gain of 60. Operates from power supply voltages of 9V to 12V d.c. Supply connection is via a pair of colour coded 4mm sockets on the front panel or via a plug top power supply unit.
Output via 2 x 4mm sockets with internal speaker and on/off switch. Input via 2 x 4mm sockets or 3.5mm jack input (for mobile phone/tablet input). Ideal for powering Rubens tube.
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