Specifications Television System 14"/20"/21" NTSC COLOR TV SIGNAL Power Consumption 14" : 57 WATTS NOMINAL, 20" : 70 WATTS NOMINAL 21" : 75 WATTS NOMINAL, Picture Tube 14" : A34KQV42X 20" : A48KRD82X (H) 21": : A51KQJ63X (H) Power Requirement AC 120V, 60Hz /AC 100 ~ 240, 50Hz, 60Hz Operating System REMOCON SYSTEM (SZM354ET) Tuning Ranges VHF CH : 2-13, UHF CH : 14-69, CABLE CH : 1,14-125 Antenna Input Impedance 75 ohm UNBALANCED TYPE FOR VHF/UHF Intermediate Frequency PICTURE 45.75MHz, SOUND 41.25MHz, COLOR SUB CARRIER 42.17MHz Speaker Impedance Single: 8 ohm 3W Dual : 8 ohm 3W x 2 Dual : 16 ohm , 3W x 2 (CT-33H1, CT-50H1)