Heathkit TA-1 vacuum tube tape amplifier/preamp – powers on, tubes function, untested for sound. Model / Series: TA-1 Tape Amplifier. Year: Late 1950s-1960s. Color / Material: Black/gold panel. Edition / Variant: Line/Mic input, 7.5/3.75 IPS equalization. Includes: Unit only, as pictured. Country of Manufacture: USA. Overall grade: Powers on, tubes function. Specific flaws: Not tested for sound output through a speaker/system – see photos for full internal view.