2017年9月20日 星期三

Installation guide for daughter



Audio playback system block



DAC tube pre-amplifier inner picture



DAC tube pre-amplifier (前級)  rear picture
Output 1 suitable for tube amplifier (後級)
Output 2 suitable for headphone


Rear view for Optic fiber connect


each Rubber cover need take off first
Left end connector connect to DAC tube pre-amplifier
Right end connector (black) connect to Mac audio jack


Rear view connect optic fiber cable
red switch must switch up
to select upper optic jack host


Rear view connect optic fiber cable
red switch  must switch down
to select lower optic jack host


Optic fiber cable connect to Mac Pro audio jack
Left view is DAC tube pre-amplifier
volume knobs


Front view of DAC tube pre-amplifier


Tube amplifier side view
Black knobs is Left volume
White knobs is Right volume
AC 110V power plug connect cable to grid



Tube amplifier top view
each tube must check insert on tube socket before power on


Tube amplifier rear view
center RCA connector (L/R) connect to DAC pre-amplifier
other out side is speaker cable ...connect to speakers


DAC tube  pre-amplifier to tube amplifier cable
Left side is input connector
Right side is out connector



Speaker front view
2-ways


Speaker connect speaker cable
need check left cable or right cable











2017年9月13日 星期三

2017年5月26日 星期五

3 ways speaker


3 ways speaker box

Tweeter

Woofer

Woofer spec.

Mid driver
Finish 3 ways speakers



2017年5月22日 星期一

Tube amplifier




Tube amplifier pcba and platform


Tube amplifier high voltage power



Connect high voltage wire


Finish PCB tube high voltage wire connect


Try put in tube pcba



Front View

Feed high voltage

Tube amplifier rack assmebly



Test tube  high voltage



Top view




Install fan



Dac tube pre-amplifier


Dac tube pre-amplifier power


Finish tube high voltage wire connection




Test Tube pcba high voltage and cathode bias voltage test


Combine DAC pcba and Tube pcba and make combine signal test



Final placement design



Final test front view



Final test rare view



Final test side view

走過咖啡店早年歲月

咖啡店從無到有... 從有到無... 歲月的流逝 ,剩下的祇有記憶.

從無到有--- 舊店設立.
從有到無--- 拔營....牧咖啡的咖啡人.....移址, 啡客...........的遷徙.

咖啡店=咖啡+音樂

咖啡=日式咖啡+美式咖啡
日式咖啡=日式單品+日式花式咖啡
美式咖啡=美式單品+美式花式咖啡
.........."請不要找茶".

音樂=古典音樂+真空管