Very attractive vintage 'slide regulator' or variable transformer, in perfect working condition. Nice over-sized control knob. All metal body, black wrinkle finish paint job, three mount points on base, nice knurled input output fasteners, comes wired with earthed plugs ready to go. Manufactured by Matsunaga Mfg. Co., Ltd., Japan. Has been used with my high end audio. Input - 240V 50-60 HzOutput - 0 - 280V. 2.1 AMPSMAX. - 5VA Solid 4.6 kg uni...t / 160mm high x 125mm diameter unit / 170mm wide including input output board. Will pack carefully and send worldwide. From Sydney. Please see my auctions for other variacs of higher or lower current ratings.