一、電唱機的唱頭是什么東西

電唱機的唱(chang)頭是(shi)它的關鍵設備之一，它直接(jie)影響黑膠(jiao)唱(chang)片的音(yin)色。唱(chang)頭里有(you)磁鐵(tie)，有(you)線(xian)圈，不論是(shi)磁鐵(tie)振動(dong)線(xian)圈固定、或(huo)是(shi)磁鐵(tie)固定線(xian)圈振動(dong)，都會因此(ci)而切割磁力線(xian)，產生電(dian)流(liu)，而此(ci)電(dian)流(liu)的大小(xiao)是(shi)隨(sui)著音(yin)樂訊號振動(dong)的大小(xiao)發(fa)出的。將(jiang)這些電(dian)流(liu)轉換成電(dian)壓形(xing)式，輸入前(qian)級(ji)，再經過前(qian)級(ji)里一個RlAA等化線(xian)路還原，繼續(xu)進入訊號放大部分，最后就從喇叭(ba)發(fa)出音(yin)樂了。

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二、電唱機唱頭的種類都有哪些

電唱(chang)機(ji)的(de)唱(chang)頭是將唱(chang)針的(de)機(ji)械振動轉變成(cheng)電信號的(de)換能器，它有多種換能方法，因此(ci)唱(chang)頭的(de)類型也眾多，主(zhu)要有以下幾種：

1、動鐵式

動鐵(tie)(tie)式唱頭(tou)(tou)在(zai)(zai)針桿尾端(duan)鑲(xiang)有(you)小(xiao)塊純(chun)鐵(tie)(tie)作振動子，純(chun)鐵(tie)(tie)位置處在(zai)(zai)磁路(lu)空氣隙中(zhong)，當針尖在(zai)(zai)聲槽紋路(lu)里運(yun)(yun)行時，純(chun)鐵(tie)(tie)也在(zai)(zai)空氣隙中(zhong)不停(ting)地運(yun)(yun)動，從(cong)而改變(bian)了(le)磁路(lu)內的磁阻(zu)，使繞在(zai)(zai)磁鐵(tie)(tie)極靴(xue)上的線圈(quan)產(chan)生感(gan)應電(dian)壓。動鐵(tie)(tie)式唱頭(tou)(tou)的振動系(xi)統質地輕盈(ying)，機械阻(zu)抗能做(zuo)得很小(xiao)，有(you)利于電(dian)聲技(ji)術指標(biao)的提(ti)高。

2、動磁式

動(dong)(dong)(dong)(dong)磁就是(shi)活(huo)(huo)動(dong)(dong)(dong)(dong)磁石(shi)的(de)意思，唱(chang)(chang)(chang)片轉動(dong)(dong)(dong)(dong)時(shi)帶(dai)動(dong)(dong)(dong)(dong)唱(chang)(chang)(chang)針振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)，唱(chang)(chang)(chang)針振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)活(huo)(huo)動(dong)(dong)(dong)(dong)了針桿(gan)，針桿(gan)尾部(bu)安裝一顆小(xiao)磁石(shi)，唱(chang)(chang)(chang)針振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)亦同時(shi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)小(xiao)磁石(shi)，而(er)發(fa)聲線(xian)圈(quan)(quan)繞著鈇(fu)芯(xin)受(shou)磁石(shi)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)干擾，因而(er)感應出交流電(dian)信號而(er)發(fa)聲，這(zhe)就是(shi)動(dong)(dong)(dong)(dong)磁唱(chang)(chang)(chang)頭的(de)原理。由于(yu)線(xian)圈(quan)(quan)及(ji)鈇(fu)芯(xin)固(gu)定在唱(chang)(chang)(chang)頭內，所以(yi)線(xian)圈(quan)(quan)可繞較多(duo)(duo)而(er)不受(shou)唱(chang)(chang)(chang)針活(huo)(huo)動(dong)(dong)(dong)(dong)重(zhong)量限制(zhi)，因此動(dong)(dong)(dong)(dong)磁唱(chang)(chang)(chang)頭輸出較大，約有(you)1.5至4mv，而(er)且唱(chang)(chang)(chang)針和線(xian)圈(quan)(quan)是(shi)分離的(de)兩個(ge)個(ge)體，所以(yi)動(dong)(dong)(dong)(dong)磁唱(chang)(chang)(chang)頭多(duo)(duo)數設計是(shi)唱(chang)(chang)(chang)針和線(xian)圈(quan)(quan)可以(yi)分開，以(yi)便唱(chang)(chang)(chang)針損(sun)耗后可以(yi)隨意更(geng)換。

3、動圈式

動(dong)(dong)(dong)圈(quan)(quan)(quan)唱頭(tou)(tou)(tou)即活動(dong)(dong)(dong)音圈(quan)(quan)(quan)之意，一如動(dong)(dong)(dong)磁頭(tou)(tou)(tou)的(de)針(zhen)(zhen)尖及針(zhen)(zhen)桿結構，只(zhi)是(shi)唱針(zhen)(zhen)尾不是(shi)安(an)裝磁石(shi)(shi)，而(er)(er)是(shi)安(an)裝線(xian)圈(quan)(quan)(quan)，而(er)(er)針(zhen)(zhen)桿活動(dong)(dong)(dong)帶(dai)(dai)動(dong)(dong)(dong)線(xian)圈(quan)(quan)(quan)，磁石(shi)(shi)就固定在線(xian)圈(quan)(quan)(quan)左右(you)，針(zhen)(zhen)桿帶(dai)(dai)動(dong)(dong)(dong)線(xian)圈(quan)(quan)(quan)而(er)(er)受(shou)磁石(shi)(shi)感應(ying)線(xian)圈(quan)(quan)(quan)出(chu)交流電信(xin)號而(er)(er)發(fa)聲(sheng)，這就是(shi)動(dong)(dong)(dong)圈(quan)(quan)(quan)的(de)原理(li)。由于針(zhen)(zhen)桿的(de)動(dong)(dong)(dong)能(neng)很(hen)小，線(xian)圈(quan)(quan)(quan)也只(zhi)能(neng)用(yong)很(hen)經(jing)很(hen)細的(de)線(xian)圈(quan)(quan)(quan)，因此線(xian)圈(quan)(quan)(quan)感應(ying)交流電信(xin)號很(hen)小，只(zhi)有0.15至0.4mv左右(you)。動(dong)(dong)(dong)圈(quan)(quan)(quan)唱頭(tou)(tou)(tou)由于發(fa)聲(sheng)線(xian)圈(quan)(quan)(quan)是(shi)直接感受(shou)振動(dong)(dong)(dong)而(er)(er)發(fa)聲(sheng)，所以(yi)很(hen)多人(ren)認(ren)為動(dong)(dong)(dong)圈(quan)(quan)(quan)唱頭(tou)(tou)(tou)聲(sheng)音較動(dong)(dong)(dong)磁唱頭(tou)(tou)(tou)好。

4、光電式

光電式唱頭(tou)的(de)針桿上裝(zhuang)有(you)一塊極(ji)其輕薄的(de)遮光片，當(dang)針尖在(zai)針槽里運行時，位(wei)于(yu)微型燈泡和光敏(min)器(qi)件之間(jian)的(de)遮光片亦隨之不(bu)停地運動(dong)，由于(yu)光通量的(de)變化(hua)而使光敏(min)器(qi)件輸出相應的(de)電信(xin)號。

5、陶瓷式

陶(tao)(tao)瓷式唱(chang)(chang)頭(tou)的(de)換能器用具有壓(ya)電效(xiao)應的(de)陶(tao)(tao)瓷材料制成。該唱(chang)(chang)頭(tou)工(gong)藝簡單，價格不高，但所需針壓(ya)較(jiao)大，對唱(chang)(chang)盤使用壽(shou)命不利。

三、電唱機唱頭通用嗎

不通用。

不同類型的電唱機唱頭(tou)輸出電(dian)壓有所不同，隨便使(shi)用不合適(shi)型(xing)號的(de)唱頭(tou)，可能會導致電(dian)路損(sun)壞，影(ying)響電(dian)唱機(ji)的(de)使(shi)用。一般建議大家根據電(dian)唱機(ji)的(de)型(xing)號選擇(ze)合適(shi)類型(xing)的(de)唱頭(tou)。