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Technic details
Specifications
Type:
Tube main amplifier
[Music power (1kHz)]
High Power:
100W + 100W (32Ω, 0.04% or less of distortion)
80W + 80W (16Ω, 0.06% or less of distortion)
40W + 40W (8Ω, 0.15% or less of distortion)
Low Power:
35W + 35W (32Ω, 0.06% or less of distortion)
18W + 18W (16Ω, 0.1% or less of distortion)
12W + 12W (8Ω, 0.5% or less of distortion)
[Output power (1kHz)]
High Power:
80W + 80W (32Ω, 0.04% or less of distortion)
60W + 60W (16Ω, 0.1% or less of distortion)
30W + 30W (8Ω, 0.2% or less of distortion)
Low Power:
30Wx2 (32Ω, 0.06% or less of distortion)
14Wx2 (16Ω, 0.2% or less of distortion)
10Wx2 (8Ω, 1.0% or less of distortion)
Frequency characteristic:
5Hz to 100kHz, +0 -0.5dB (16Ω load intensity)
[S / N ratio]
Input short-circuit (1HFM) High Power:
100dB (16Ω)
105dB (32Ω)
Input short-circuit (1HFM) Low Power:
97dB (16Ω)
103dB (32Ω)
Input Open High Power:
92dB (16Ω)
97dB (32Ω)
Input Open Low Power:
90dB (16Ω)
96dB (32Ω)
[Input sensitivity]
High Power:
0.4V (8Ω)
1V (16Ω)
1.6V (32Ω)
Low Power:
0.3V (8Ω)
0.6V (16Ω)
1.2V (32Ω)
Input attenuator:
A 3dB step, -21dB damping
Input impedance:
100kΩ
Dumping factor:
High Power - 50 (16Ω)
Low Power - 30 (16Ω)
[The semiconductor used]
Thermionic tube (28 pieces):
6267 x 2
12AU7 x 2
6BQ5 x 4
50H-B26 x 20
Diode (30 pieces):
SM-150A x 2
SM-150C x 4
SW-05B x 24
Power source:
AC 100V, 50 / 60Hz
Power consumption:
At the time of a non-signal - 500VA
At the time of the maximum output - 900VA
Dimensions (W x H x D):
380 x 185 x 370mm
Weight:
23.5kg
Year:
Around 1966
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