Hellberg Mars 657 V 






Hellberg Mars 657 V
Sn: 202XXV
Tubes: ECH21, EF22, EF22, EBL21, AZ1
Dial lamps: 2x 6,3V 0,3A
Dimensions: 505(540) x 362 x 243(255) (mm)
Year: 1946-47
ID: 1952