Thorens PR-15 Amplifier Mixer

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The Thorens PR-15 amplifier from 1961 is a small, compact device with a tube configuration. 

The PR-15 amplifier has 6 tubes: 2 x 12AX7, 12 AT7, 2 x 6é6, EZ81. It can be operated with 110 - 250 volts. It has 4 inputs for phono, micro, radio and tape recorder as well as outputs for speakers with 4 / 16 Ohm impedance.