Headphone Amplifier BD139 BD140 LM833 Lehmann LM317 LM337 NOVER10000UF/35v*2

Specification:                                                                             

Overal dimension : 140MM * 113MM

Operating voltage : AC 15V-0-15V

Applicable Headphone Impedance : 32 Ohms -600 ohms

Frequency Response : 20HZ-20KHZ

Feature:

All components of this product use original parts. 

Using genuine original BD139 BD140 and LM833;

Top coupling capacitance 1UF, the main filter capacitor using Golden-character 10000UF/35v * 2, using LM317 LM337 voltage regulator circuit, to ensure a steady and good performance.

Resistor ues 5-ring metal resistance , the main circuit employs a precision of ± 1% metal film resistors rings , ensure the machine a good ratio of signal to noise  ;

The board uses 1.6mm thick sheet double-sided PCB , 2.0 oz copper thickness , HASL whole process ensures the good performance. First class quality PCB.

Package: 

1x Headphone Amplifier BD139 BD140 LM833 Lehmann LM317 LM337 NOVER10000UF/35v*2