background image

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

 

 

 

 

Reviews: