Heathkit AA-181 Mono Tube Amplifier

Power output: 25 watts

Intermodulation Distorsion: less than 2 % at 25 watts using 60 cps and 6,000 cps signals 4:1

Controls: 4-position selector switch; volume control, bass control and treble control with ON/OFF switch

Outputs 4,8 and 16 ohms

On rear Phono aux, xtal, mag and microphone

Tube complement 2-6EU6, 1-12AU7, 2-6L6GB, 1-5AR4; 1 selenium bias rectifier

13 1/2 W x 4 15/16 H x 9 1/2 D