Nady Systems GTA-1260 owner manual S P E C I F I C At I O N S, Tube Replacement

Models: GTA-1260

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S P E C I F I C AT I O N S

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.

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Nady Systems GTA-1260 owner manual S P E C I F I C At I O N S, Tube Replacement