參考金嗓子C3850前級電路套件商品頁備份筆記

參考金嗓子C3850前級電路套件商品頁備份

說明:

這個是不是真的C3850的電路其實我是存疑的。畢竟大陸有很多仿制都是變種再變種,變到跟原本電路已經關系不大了。

而且大陸的版子就跟季節一樣,也許過幾年這板子就消失了。相關頁面或資料再也找不到,所以先備份在這裏作為日後的參考。

值得注意的是這PCB板是先將RCA的訊號進入PCB再引出至VR,再由VR輸入到PCB的INPUT端,然後放大後再OUTPUT。所以有的頁面會說也可以不經過訊源選擇直接進INPUT端。

參考金嗓子C3850前級電路 套件 甲類輸出 帶3位輸入選擇

Assembeld Class A Preamplifier Board Preamplifier Board Base on  C3850 Circuit

This is a finished board.

This board is reference is from the Accuphase C3850 circuit .it is worth making and admiring preamp circuit. If you do it carefully, the effect is much better than the general pre-stage. It is looser, more delicate, warmer and charming, much better than Ordinary tube and op preamp.

The circuit architecture uses the operational amplifier as the basic amplifier. Discrete parts are added to increase the open-loop gain, and the voltage and current dual feedback circuit is used to reduce distortion. The output tube uses the British original famous tube ZTX450 ZTX550, and the output is in Class A status. The music tastes very good. Bold

After solder well. it is No need to debug the board PCB size: 155X136MM

Works voltage: Recommend AC15V-0-AC15V (14-18V are all ok) This board support 3 way audio inputs.

The standard op amp is Philips NE5534, customers can upgrade other single op amps, such as OPA627, LME49710, OPA1611, etc.

線路參考自金嗓子3850前級,電路是一個讓人值得制作和欣賞的前級,用心去做,效果比一般前級好的多,更寬松,更細膩,更溫暖迷人,因為經典,遠遠不是普通電子管和運放前級可以對比的,聲音可以比美電子管音色

電路架構為運放作為基本放大,加入分立件提高開環增益,并采用電壓和電流雙反饋電路降低失真,輸出管子用了英國原裝名管 ZTX450 ZTX550,甲類狀態輸出,音樂味道非常好,非常有膽味,默認搭配NE5534運放,客戶可以自行升級。板子無需調試,安裝焊接正確即可。

變壓器輸入電壓“AC14VX2到AC18VX2都可以,用24V變壓器都可以其實安裝好變壓器后板子為220V輸入,注意高壓不要碰到。









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