HH Scott A-457 Amplifier
(1977-1978)
TECHNICAL SPECIFICATIONS
Japanese manufacturing
Power (RMS) 2X60w/8 ohms
Harmonic at rated output: 0,2%
Frequency Response: 15/35 Khz
Damping Factor: 35/8 ohms
Phono 1/2: 2,5 mV
Tuner: 160 mV
Aux 1/2: 160 mV
Tape In: 160 mV
Phono: 75 dB
Tuner, Tape In: 85 dB
Aux: 85 dB
Output Impedance: 4/16 ohms
Dimensions: 400 x 325 x 150 mm
Weight: 12 Kg
Service Manual | Transistors | Equiv | Other |
| 2SC733 | BC107-BC182L | 2N3710-KSC945 |
| 2SA495 | BC178-BC214LB | KSA733 |
| 2SA494 | BC214-2N4058 | KT357G |
| 2SA661 | 2N3081-NTE290A | 2N2904-BC212 |
| 2SD371 | BD184-2N5758 | KT819G |
| MPSU56 | 2SA1837-BD528 | BC364-NTE189 |
| 2SD525 | BDT41C-BD243 | NTE54-KT819G |
| TIP31B | NTE291-BD237 | BD241 |
| MPS9632 | NTE123AP | BC167 |
| MPS9484 | 2N2905-NTE159 | BC327 |
| MPS9700 | NTE123AP | |
| MPSA06 | BC639 | NTE287 |
| MPSA55 | BC327A-NTE159 | BC161-BC527 |
| 2N5401 | BF491-2N5400 | KT502E-NTE288 |
| 2SC372 | BC547-BC184L | NTE85 |
| 2SC1000 | BC546-BC184L | NTE199 |
| 2SA842 | BF450-BC214 | 2N3496-NTE234 |
| 2SC1166 | BC182-BCW36 | 2N4410 |
| 2SD428 | BDX95-KT819GM | NTE328 |
| MPSU55 | BC363-BD518 | NTE189 |
| 2SD234 | BD241A-BD535 | NTE152 |
| MPS9630 | BC548C-BC168 | BC546 |
| MPS9633 | NTE128-2SC732BL | BC413-2SC2240 |
| MPS9680 | BC548-NTE159 | BC309-BC559 |
| MPS9750 | NTE159 | |
| MPSL51 | BC640-2SA965 | NTE288 |
| 2N5400 | BF491-2N5401 | KT502E-NTE288 |
| 2SC374 | NTE11 | KSC945 |