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SPECIFICATIONS
Type:
Gain:
Input Sensitivity:
Frequency Response:
Input Impedance:
Source Impedance:
Load Impedance:
Output Impedance:
Noise Level:
Power Supply:
Tubes:
Dimensions:
Color:
Weight:
Accessories:
Power Amplifier
72 db
1.0 volt rms for rated output
175 watts at less than 5% thd, 65-20,000 cps
165 watts at less than 3% thd, 70-10,000 cps
± 1.0 db, 10-50,000 cps
70,000 ohm potentiometer
150, 600 ohms with 15095 Plug-in Transformer
8 (35v), 16 (50 v), 32 (70 v) ohms
Less than 10% of nominal load impedance
Output noise -25 dbm: 77 db below rated output
Volume control, continuously variable composition
105-130 volts, 60 cps, 350 watts
1-12AX7,1-6SN7GTB, 2-6W6GT, 2-811-A, 4-5R4GY
10 1/2" H, 19" W, 13 1/2" D
Green
59 lbs.
15095 Plug-in Transformer
10399 Panel
1515 S. Manchester Ave., Anaheim, Calif.
New York
1570B
AMPLIFIER
OPERATING
INSTRUCTIONS
12969-1
PRICE $ .14
11/65
LITHO IN U.S.A.
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Summary of Contents for Altec Lansing 1570B
- Page 1 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: ±...
- Page 2 (used in two-way speaker systems), the low frequency energy applied to the driver voice coils must be limited. This protection is provided in the 1570B Amplifier by means of an R-C high pass filter in V-1 grid circuit (see schematic).
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Page 3: Power Connections
POWER CONNECTIONS The power transformer of the 1570B Amplifier has primary taps for 117 and 128 volts and is shipped with the 128 volt tap (white lead) connected. Use of the 128 volt tap for all line conditions will extend component and tube life, reducing maintenance to a minimum.
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