digi01

ASK FOR $300SGD INCLUDING SHIPPING. PM ME FOR SERVICE.

18X14mm

neat layout,is it powered by 1 9V battery?

huangyong,I have mail 3 buffer to you.pic attached.

I am going to build mine buffer.I am really happy with the discrete circuit. Hi huangyong,your try out is very useful to me. the attached is mine discrete buffer(WJ buffer)

Hey huangyong,sound interested :-)have you test with K1000 headphone?

FYI, mine below: Items owned now: SOURCES: Creative Jukebox (source),MP3 and WAV ATS909(source),FM Radio SONY D135 pocket CDP(source) HEAD AMPS: QRV06,ZEN,benison HEADPHONES: CD3000 CM7ti HD495 K141M INTERCONNECTS: pcocc cables. and a passive preamp for roll varying source.

any update? P.S. the buffer is well done! url at: http://digi01.hk.st

a cup of tea congratulations

PCOCC我们这里叫无氧铜。就是用没回收过的高品质铜线制成的电缆。

double post,sorry.

FYI, three usual pcocc cable should be ok.simply interweave them each other without ground shielding.

hello everyone,sorry for slow response.maybe you couldn't believe I am hardly to view Portable Audio forum I am glad to help you make specific headamp.pm me for serve,thank you. P.S. I live in beijing china.

SIP01 is a single buffer,but very small,only 14x18mm.the project is still in progress.thanks. Z

yes,Right Channel(RO) near the power input location.you should cut the top layer copper and bottom layer copper of "RO". my solid buffer is design for generic use.there are 2 design,SIP(system in package)01 & SIP02. SIP01 can roll OPA633 or HA3-5002,12 pcs HA3-5002 is too costly.I am glad to send 3 sets of these unit for your tryout. SIP02 can roll BUF634,pdip packaged.the buffer's bias is adjustable.

the pad of poi of the original board is only for ALPS27.

have you cut the R channel's output pad?there are bug. P.S. good case,looks pleasure go ahead. BTW. I am going to make some solid buffer for roll ha3-5002. your friend,Z

ygpm

that is diy's fun...

the price is sgd30.

all raw material cost is around 100SGD

here is the archetype article:LINK

yes,It is a capacitor,skin plastics for sound adjust. hese is mine completed ZEN

那样做可以降低温度，但是这台机器独特的音色也会随之失去

the other gilmore amp used 1815/1015 for output stage,them setting in low bias,Yes the gilmore amp really makes hot but not too hot than digi01's BB.because digi's amp is a over version with high bias current. 实际上，很多class a的放大器都很热，手指放上就会烫伤 热量是正常的。实在担心，安置heatsink也可以。但要注意每个晶体管都要和heatsink保持接触，不然个别晶体管的温度会出现异常，造成机器工作不稳定甚至损坏。