Details:
Based on the famous American ARC balance preamplifier circuit.
Low render and low distortion amplification
4 ways audio input :2 groups RCA +2 groups balance
2 ways audio output :1 ways RCA +1 ways balance
Audio switch board size:70x230mm
Power supply board size:100x230mm
Preamp board size:160x230mm
Tubes model:
ECC82=12AU7 x2
ECC88=6911=6N11 x 2
6x4 x1
Work voltage:
AC300V-0-AC300V @ 0.1A
0-AC14V @3A
0-AC5V @2A
Gold-plated PCB on both sides
HiFi audio resistors and capacitors components.
Gold tube seat
Note :
Diy kit :all the parts need yourself to solder.(not included potentiometer ,Balanced isolation transformer,XLR socket ,RCA and 5pcs tubes)
Assembled board:have solder well,(not included potentiometer ,Balanced isolation transformer,XLR socket ,RCA and 5pcs tubes)
Suitable transformer:
https://www.ebay.com/itm/164811294358
https://www.ebay.com/itm/164826836049
Suitable chassis:
https://www.ebay.com/itm/165928549489
Balanced isolation transformer:
https://www.ebay.com/itm/164811066923
https://www.ebay.com/itm/163697804268