点調整偏壓
小弟有部斯巴克a-300p合拼胆机没有說明書！所以不知如何調整4隻300b的偏壓。
有無師兄可以幫到小弟！万分感謝 本帖最後由 billymud 於 2014-5-22 09:39 編輯
read this ??
http://hk.audio-space.com/%e8%aa%bf%e6%95%b4%e5%81%8f%e5%a3%93%e7%a8%8b%e5%ba%8f/
or
those ?
https://hk.search.yahoo.com/search?p=%E8%AA%BF%E6%95%B44%E9%9A%BB300b%E7%9A%84%E5%81%8F%E5%A3%93%E3%80%82&fr=yfp&ei=UTF-8&meta=rst%3Dhk
once u learn, the application is not limited to 斯巴克a-300p合拼胆机 ! {:1_253:}
photo credit: fm_33 吾該師兄！问多句300b
應該調整到幾多？v才正確呢？ wingbut 發表於 2014-5-22 10:16 static/image/common/back.gif
吾該師兄！问多句300b
應該調整到幾多？v才正確呢？
應該調整到幾多？v才正確呢？ that really depends on it's original design.u may like to measure the existing readings and compare it.Or, call Spark Co/agent for a reference figure.they may give u the current rating (of cathode). in that case, u can convert it to voltage for ur bias setting.
I can't tell u the ref voltage, as I don't have Spark a300P. 其实無乜特别就唔好点調教
(Post76 Android 手機版送出) 我用万用錶test4支300b4支都吾同！
我用DC test出耒系0.450.580.810.74。
我張4支300b調整到每支0.60 是否正確呢？
有無師兄解答到小第、感激！ kmc0907 發表於 2014-5-22 12:15 static/image/common/back.gif
其实無乜特别就唔好点調教
(Post76 Android 手機版送出)
師兄因為是二手返黎！
所以想睇睇有無偏差！
又無說明書在手！真系難搅…… wingbut 發表於 2014-5-23 12:23 static/image/common/back.gif
師兄因為是二手返黎！
所以想睇睇有無偏差！
又無說明書在手！真系難搅…… ...
咁用耳聽有冇大細声？
(Post76 Android 手機版送出) 調咗一樣應該ok啦，仲有問題嗎？ zoneaudio 發表於 2014-5-23 21:16 static/image/common/back.gif
調咗一樣應該ok啦，仲有問題嗎？
師兄：想請教300b調整到0.60這個數是否正確？大過或小過有否其它影響？謝謝解答{:1_264:}