1570B
AMPLIFIER
OPERATING
INSTRUCTIONS
SPECIFICATIONS
Type: Power
Amplifier
Gain: 72
db
Input Sensitivity:
1.0 volt rms for rated output
Power Output:
175 watts at less than 5% thd, 65-20,000 cps
165 watts at less than 3% thd, 70-10,000 cps
Frequency Response:
± 1.0 db, 10-50,000 cps
Input Impedance:
70,000 ohm potentiometer
Source Impedance:
150, 600 ohms with 15095 Plug-in Transformer
Load Impedance:
8 (35v), 16 (50 v), 32 (70 v) ohms
Output Impedance:
Less than 10% of nominal load impedance
Noise Level:
Output noise -25 dbm:
77
db below rated output
Controls:
Volume control, continuously variable composition
Power Supply:
105-130 volts, 60 cps, 350 watts
Tubes: 1-12AX7,1-6SN7GTB,
2-6W6GT
,
2-81
1
-A, 4-5R4GY
Dimensions: 10
1/2
"
H, 19" W, 13 1/2"
D
Color: Green
Weight: 59
lbs.
Accessories:
15095 Plug-in Transformer
10399 Panel
1515 S. Manchester Ave., Anaheim, Calif.
New York
12969-1
LITHO IN U.S.A.
PRICE $ .14
11/65
Summary of Contents for 1570B
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