FS:AD1865N-K NON OVER SAMPLING DAC 2.1x PROTOTYPE

[rubydac]

This PCB look seem to same as Audio Note DAC 2.1x but I can't find I/V transformer so I used only I/V resistor instead of I/V transformer, from 4 PCBs of original I modified to 1 piece completed borad

In cluded :
1.Digital board (groud shield) cs8414 + ad1865n-k
2.Digital & analog supply board
3.Tube output board 6X4 RCA + 2 Pcs of 6922 Phillips JAN
4.High voltage regulated supply board (adjustable)

I have only 1 completed PCB of prototpye
I ask for 350 USD included power transformer but excluded chassis, included shipping

If include chassis plus 150 USD (2Kgs)
Paypal accept

Rubydac

 

[rubydac]

NEW PCB

For special offer with a new PCB plate throgh hole 2 layers.

Hovland coupling capacitor, 6n23p output tube (very realism), extra low THD of pulse transformer, high speed MUR diode, good I/V audio filter choke

This board 100% worked fine & high quality sound when compare with other DAC or CD player lower 3,000$

You can adjust voltage & current by yourself !

I ask for last price 300USD !

PAYPAL accept

Thanks
Rubydac

 

[rubydac]

SCHEMATIC FOR EVERY REQUEST

TOP LEFT = DIGITAL MODULE
TOP RIGHT = TUBE AMP BUFFER
BOTTOM LEFT = HIGH VOLT REGULATION 160 - 210 VDC
BOTTOM RIGHT = SUB REGULATOR +/- 5 VDC

Thanks
Rubydac

 

[rubydac]

Special price

Completed PCB (pcb + cs8414 + ad1865n-k + all parts + transformer + shipping) = 300 USD

Accept with PAYPAL only !

Thanks
Rubyac

 

[rubydac]

2nD offer

bared board + cs8414 with adaptor + ad1865 n-k + 2*6dj8 + 6x4 + inductor low pass filter + pulse transformer + shipping = 230 USD

Paypal aceppt only

Thanks
Rubydac

 

[rubydac]

3rD offer

pcb bared board + cs8414 + ad1865n-K = 150 USD

Paypal accept

Thanks
Rubydac