AMPLIFIER A457




Scott Amplifier model A457 - 1977-79
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SCOTT A457  

SCOTT A457  

SCOTT A457  

SCOTT A457  



TECHNICAL SPECIFICATIONS

Power output:

Continuous Power (RMS) 60 watts at 8 ohms per channel
Frequency response: 15Hz to 35kHz
Distortion:

Harmonic at rated output: 0,2%

Input Sensitivity and Impedance:

Phono: 2,5 mV
Micro: 6 mV
Tuner: 160 mV
Aux: 160 mV
Tape In: 160 mV

Signal to Noise Ratio:

Phono: 75 dB
Tuner, Tape In: 85 dB
Aux: 85 dB
Micro: 80 dB
Damping Factor: 35 at 8 ohms
Output Impedance: 4 - 16 ohms (8 ohms nominal)


Dimensions (W x D x H): 400 x 325 x 150 mm
Weight: 12 Kg


SCOTT A436  













Scott top quality


H H Scott




Transistors Names Equivalents Approximate Transistors Names Equivalents Approximate
2SC733 1110-052 BC107-BC182L 2SC372 1110-053 BC547-BC184L
2SA495 BC178-BC214LB BC205 2SC1000 BC546-BC184L
2SA494 2SA842 BC177 2SA842 BF450 BC557A
2SA661 2N3081-NTE290A 2SC1166 NTE123AP
2SD371 2N2654 2SD428 2N4348
MPSU56 2SA1837 BD140-BD231 MPSU55 BD138-BD229
2SD525 BDT41C 2SD234 BD235
TIP31B NTE291-BD237 MPS9630 BC548C-NTE123
MPS9632 NTE123AP MPS9633 NTE123-2SC732BL
MPS9484 2N2905 MPS9680 BC548-NTE159
MPS9700 NTE123AP MPS9750 NTE159






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