Manufacturer : Hornyphon Type : W312 Produced : 1933 / 34 - Austria Frequency range : MW, LW Receiving mode : preamplifired  audion - regenerative Tubes : E452T, E444, E428, E443, 506 Speaker : internal field coil speaker with 5 ohms impedance coil Power supply : 110V/ 220V, 50Hz Receiving estimation (1-10) : 8 Global estimation (1-10) : 8 Specials : needs shortly wire antenna (10 ft.) Note : rare, heavy and solid model!