Nady GTA-1260 Manual - Page 7

S P E C I F I C AT I O N S Power Amp Section ...Tubes: 2 ea 6L6GC Power Output 60 Watts @ 8Ω 5% THD; 40 Watts @ 4Ω 5% THD Speaker ...Nady PowerDrive™ PD-12i by Celestion, 12" 8Ω Preamp Section...Tubes: 3 ea 12AX7A Input Imp...200KΩ Input Sens Max clean 800Mv 1KHz; Max dist. 8Mv. 1KHz Line Out Inp...600Ω Line Out Level ...1V Nominal Power Requirements ...115VAC/60Hz; 230VAC/50Hz Fuse For 115 VAC: 3 AMP S.B. 250V; For 230 VAC: 1.5 AMP S.B. 250V Dimension ...18.3" x 9" x 17.5" (46.5 x 22.9 x 44.5 cm) Weight ...45.6 lbs. (20.7 kg) TUBE REPLACEMENT Preamp Tubes 12AX7A - No adjustment required Output Tubes 6L6GC - After replacing output tubes, output tubes bias voltage should be checked with Standby switch set to On, no signal input, and all controls set to minimum. If output tube bias voltage is not correct, amplifier will sound unusually distorted with mushy audio and output tubes may overheat. Normal output tube bias voltage should be - 52VDC on Pin 5 of all output tubes. For best results use matched output tubes. The specifications above are correct at the time of printing of this manual. For improvement purposes, all specifications for this unit, including design and appearance, are subject to change without prior notice. 7