Wood-make wire wound rack.
Screw fix wire wound rack.
Wire wound coil.
Check coils net list.
2011年11月29日 星期二
The fail diy diary -1
Wood-make wire wound rack.
Screw fix wire wound rack.
Wire wound coil.
Check coils net list.
2011年8月15日 星期一
Wind/Solar power BMS system
Top View.
Wind/Solar power generation.
System installation
2011年7月6日 星期三
Li-ion BMS and Wind/Solar power BMS system
Li-ion BMS module Front View.
Each module 24V/10A max. power output.
Li-ion BMS module rear View.
Each battery module could read out voltage,current,temperature,SOC,output current.
Charger build-in and have charge balance function.
Wind/Solar power BMS system
Wind power/Solar power BMS controller with MPPT function.
Build-in Lead Acid battery charger 12v/24V.
Build-in KW/h meter.
Also could read out battery voltage,current,temperature,SOC,output current.
With PC utility could monitor BMS status.
2011年5月6日 星期五
ToyX project EQ Linearizer study ....Add Output transformer
Attach modify schematic drawing.
Fix impedance for better audio matching.
Modify R channel wire connection and add OTP.
Modify L channel wire connection and add OTP.
First time just modify one channel and after A-B test decide to replace two channel together.
響應較佳 ,音像刻化, 音場,音色線條深刻都有更進一步, 自然.
Fix impedance for better audio matching.
Modify R channel wire connection and add OTP.
Modify L channel wire connection and add OTP.
First time just modify one channel and after A-B test decide to replace two channel together.
響應較佳 ,音像刻化, 音場,音色線條深刻都有更進一步, 自然.
2011年3月24日 星期四
Toy12 Plasma tweeter 離子高音 Diy-10 RF power amplifier PL519 check sound color
Under testing picture and test plasma radiation.
Modify PL519 plate current about 150mA for A,B test.
德國 VALVO PL519 音場淺且後場有些交代不清,音像較凸出, 音色較厚些且硬一點.
PL519 plate current over 220mA tuning to 150mA.
德國 SIEMENS PL519 7Khz~15Khz 響應較佳 ,音像刻化較深, 音場深,音色線條深刻化清楚, 且深動自然.
PL519 plate current over 200mA tuning to 150mA.
法國 MAZDA PL519 音場刻化較深, 但音色線條清瘦 ,空洞, 音色偏冷.
PL519 plate current about 150mA.
Pasted visit detail .... from Acapella boss Herman Winters
...離子高音
Acapella另一項特點就是離子高音（ION Tweeter），所謂離子高音是利用真空管昇壓放電產生電離發聲，由於沒有振膜，所以質量為零，高頻發聲完全沒有延遲，是非常理想的高音（或稱超高音）設計。雖然離子高音的設計原理近乎完美，可是怎麼沒有大量應用？道理不難理解：太貴了。Winters說Acapella的離子高音以西門子 PL519真空管震盪，裡面還有石英管做阻尼，大部分玩家都知道真空管有壽命，時間到了之帶該換，但可能很多人不知道，這根石英管也有壽命，使用年限大約十年，時間到了應該更換，以國內銷售Acapella的歷史來看，可能有些發燒友自家的離子高音應該換石英管了，如果有需求不妨與代理商洽詢，尋求正廠零件更新。
...after test some concept come out
1.There design audio system concern harmonic distortion of amplifier.
2.There concern components affect sound color.
So there choice SIEMENS PL519 too.
My final system combination is 5U4g+EH 6C45Π+SIEMENS ECL82+SIEMENS PL519.
2011年3月5日 星期六
Toy13 300B Amplifier DIY Record....2
Insist 6C45Pi and 300B is AC heater.
Finish signal tube B+ voltage connect and 300B cathode voltage setup.
Finish signal tube B+ connect and finish coupled 300B grid C-R connection.
Finish stand alone high voltage power.
Pretest whole 300B amplifier.
2011年2月15日 星期二
Toy13 300B Amplifier DIY Record....1
Design & drawing 300B high voltage circuit with delay on function.
Main power switch setup in 300B case.
High voltage will be remote turn-on and through Jump wire supply to 300B case.
Design & drawing 300b signal amplifier & 300B bias circuit.
Calculate 6C45pi & 300B plate voltage.
Prepare all components & 300B tubs.
Do placement & hand drill hole for Mount 5U4G & delay on Relay.
High voltage & chock transformer will mount on this box too and separate circuit with 300B case.
Do placement & hand drill hole for mount 6C45Pi & 300B platform.
6C45Pi & 300B high voltage & bias circuit will fix in the case.
Mount 6C45Pi & 300B platform structure picture.
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