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| [#88] 電反相問題 Use ELFIX polarity Tester to measure electrmagnetic fields on your HI-fi stuff. Ensuring that the mains polarity is correctly connected. 最後修改時間: 2011-04-15 10:25:00 |
rcywong 正式會員219.xxx.xxx.89 |
2011-04-15 10:24 | |
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| [#87] 電反相問題 終于等到咁多高手出來升壇講學. |
daniel-chui 正式會員 118.xxx.xxx.50 |
2011-04-14 22:14 |
| [#86] 電反箱問題 Noise spectrum of a typical power line  |
長長影子 正式會員 119.xxx.xxx.148 |
2011-04-13 22:38 |
| [#85] 電反箱問題 類似喱個問題我都響唔同討論區回覆過N次, 圖亦都貼過N次, 仍然都係會有人問相過嘰問題, 玩得耐又見到相同嘰問題有時實在懶得回答, 只能怪討論區冇資料整理, 討論區都係人來人往咁都辦法, 但係以我自己嘰個人感受, 喱個台嘰氣氛本來都已經唔係好架喇, 問又好答又好喇大家嘰語氣最好平氣和D, 言語上嘰誤會經常會因而產生, 果D帶輕視嘰語氣大家唔該收埋晒佢..  |
長長影子 正式會員 119.xxx.xxx.148 |
2011-04-13 22:37 |
| [#84] 電反箱問題 教育片 http://v.youku.com/v_show/id_XMjQ5MjY4NDYw.html |
simon62 正式會員 113.xxx.xxx.215 |
2011-04-13 14:52 |
| [#83] 電反箱問題 甘如果個位師兄話反相後電壓係比正相高左好多...即係對器材表現有影響？... ----------------------- 咁代表電路被干擾機會增大了。 |
simon62 正式會員 113.xxx.xxx.57 |
2011-04-13 01:11 |
| [#82] 電反箱問題 甘如果個位師兄話反相後電壓係比正相高左好多...即係對器材表現有影響？... |
seaseasea 正式會員 182.xxx.xxx.51 |
2011-04-13 01:10 |
| [#81] 電反箱問題 嚇死....唔明以為屋企電壓高左, 明白了謝謝 最後修改時間: 2011-04-13 01:09:59 |
winning7 正式會員 218.xxx.xxx.124 |
2011-04-13 01:06 |
| [#80] 電反箱問題 我記得佢母頭既地線(好似)伸長左個扣出黎...個扣可以接住他表..條針...而他表另一條針就放在CD機穀上....大概係甘樣 --------------------------------------------- 這是check電位差的，方法正確，可以測出正反相接入分別。 |
simon62 正式會員 113.xxx.xxx.57 |
2011-04-13 01:03 |
| [#79] 電反箱問題 simon62師兄 我記得佢母頭既地線(好似)伸長左個扣出黎...個扣可以接住他表..條針...而他表另一條針就放在CD機穀上....大概係甘樣 |
seaseasea 正式會員 182.xxx.xxx.51 |
2011-04-13 00:56 |
| [#78] 電反箱問題 其實以前有師兄用一條正相電源線同一條反相電源線...分別插CD機後再用他標去check..發覺反相後電壓係比正相高左好多...甘就講左反相係對器材有影響既... ----------------------------- 你講果位師兄當時用他表check邊樹既電壓？ |
simon62 正式會員 113.xxx.xxx.57 |
2011-04-13 00:40 |
| [#77] 電反箱問題 都唔知邊個嗡得就嗡，幾時R等如任何負載？如果係，咁Load點解？拋得電路圖出黎就大家認真d，你更唔順都只因我笑你一句，你自已用錯圖醒你又唔領情，純阻性負載無聲出都唔願接受，上得網黎咁小氣日子好難過，幾十年來，電路圖中出現長方型旁邊有R字樣，大家都知道係代表電阻，#54既圖中R就係代表左電阻，唔好自以為是既當佢係百搭，否則幾十年來學過模電既都俾你笑死。不過話講番轉頭，第二幅圖用Z字咪好囉，識得改正，唔錯呀，Z字就真係任你嗡，電路圖符號都好似無將Z指定係乜，所以有好大發揮空間。仲有呢，我都無話過負載會改變初級電源頻率、相位，都唔你急乜野！ 至於乜野正反接AC影響分別，今日某某出條thread講一次，有人問點解點解，然後有人答點解點解，天日又來一位大哥出條thread又問一次，然後又有人答一次。咁如果去到某年某月某大哥又問一次，點知今次無人得閒打下字，咁咪變左無分別？唔通呢家野全世界只有R33先有公信力？無左R33一問一答就從此地球上消失左呢種物理現像？ 講遠左添，倒帶睇下喇唔該，#25都開始講左原因，唔通我話煲水超過100度水就會變水蒸氣，然後有個大哥黎話唔信要我真係燒煲水youtube俾佢睇下先信？上得電路圖唔知呢個地球上既變壓器會漏磁？仲唔知乜野叫對等電位？咪玩喇好唔好！何況我都講埋用頻譜分析儀去睇分別，睇乜野？睇諧波呀大哥，唔通真係要我拍youtube？ |
simon62 正式會員 113.xxx.xxx.57 |
2011-04-13 00:34 |
| [#76] 電反箱問題 ＞olddude hing, you may take this topic as your university assignment to study and analyse why reversed polarity can affect amplifier sound quality. Not even think about the issues mentioned above, also think about the grounding loop within surrounding home. You know what, I was expecting an enlightenment from someone who seemed to know it all but then again, all I got was an excuse. So disappointed. I guess it is much easier to do a big show of smoke and mirrors than explaining how the magic works. 最後修改時間: 2011-04-13 00:32:27 |
olddude 正式會員 218.xxx.xxx.165 |
2011-04-13 00:30 |
| [#75] 電反箱問題 反相令電壓高左?? 電壓?? 係乜原理?? |
winning7 正式會員 218.xxx.xxx.124 |
2011-04-13 00:23 |
| [#74] 電反箱問題 其實以前有師兄用一條正相電源線同一條反相電源線...分別插CD機後再用他標去check..發覺反相後電壓係比正相高左好多...甘就講左反相係對器材有影響既... |
seaseasea 正式會員 182.xxx.xxx.51 |
2011-04-13 00:10 |
| [#73] 電反箱問題 其實各位師兄我想問.....好似blue ray機..後面得8字頭..又唔知點會L同N..甘咪好易反相羅？ |
seaseasea 正式會員 182.xxx.xxx.51 |
2011-04-13 00:01 |
| [#72] 電反箱問題 唔好老屈 我由頭到尾問有無人可以証明LN倒轉駁有分明 是有人無端白事又講話全波整流後純阻性load唔可以作準云云, 我先同佢癲 我有邊句講左/暗示左LN倒轉有分別, 請即刻quote返no. copy&paste出來 |
淡如水 正式會員 61.xxx.xxx.252 |
2011-04-12 23:42 |
| [#71] 電反箱問題 ha！ |
batmanames04 正式會員 124.xxx.xxx.114 |
2011-04-12 18:41 |
| [#70] 電反箱問題 死火，有人思覺失調，唔記得自已講過交流電反相會令到聲音反相添，家陣玩角色調轉變身大俠。 |
simon62 正式會員 113.xxx.xxx.57 |
2011-04-12 17:34 |
| [#69] 電反箱問題 The objective of re33 platform is to share our experience and knowledge from each other. But very disppointed some guys are even shouting here and claimed they just presented they are experts. Polarity matter: Reversed Electricity phasor differences 180 degree on secondary winding Time: 0.02 second per cycle. Half cycle 0.01 second. There is no phase different on DC power supply after rectified. There is only DC reference. Why reversed polarity affect sound quality? It is related the transformer construction itself. It relates to transformer inductance, EMF, back EMF, ground, chassis ground and magnetic flux. olddude hing, you may take this topic as your university assignment to study and analyse why reversed polarity can affect amplifier sound quality. Not even think about the issues mentioned above, also think about the grounding loop within surrounding home. simon....62 & batmana...04 chings, you're making cow in the room. You did'nt know how big the world is..... 最後修改時間: 2011-04-12 17:13:40 |
rcywong 正式會員 219.xxx.xxx.89 |
2011-04-12 17:01 |
