leolss 发表于 2006-9-9 11:29:21

原帖由 head-fi 于 2006-9-8 12:43 发表
我防的EARMAX的耳放也换了吹喇叭的6dj8,小提琴的声音细腻委婉多了,earmax的线路高频非常的好,中低频不太能较好的表现大编制的古典音乐。不过我是制作的老仿不好比。;P
还有这电路还有个好,直流输出几乎为零, ...

用很好的输出耦合电容的话怎么会有直流输出呐?除非用漏电的电容!

head-fi 发表于 2006-9-9 23:57:10

http://headwize.com/images4/cmoy5_1.gif
http://headwize.com/images4/cmoy5_0a.jpg
Back in 1999, I received an email with an attached schematic of a tube amplifier. The sender told me that it was supposed to be the schematic for a "clone" of the famous EarMax miniature headphone amplifier. Since he had no more information about the design and had not built it, I filed it away to be referred to at a later date. Months later, I saw the schematic again in a book called Valve Amplifiers (2nd ed.) by Morgan Jones. In the book, Jones described it as a reverse-engineered version of the EarMax. That is, the schematic was not of the true EarMax, but was derived from the published specifications of the EarMax (e.g., 3 tubes, the power supply voltage, the input and output impedances). Jones had created the circuit as an academic exercise, but had not actually built it. I once again put the schematic away, hoping later to find a DIYer who could give construction details.
我仿的:

[ 本帖最后由 head-fi 于 2006-9-10 00:00 编辑 ]

leolss 发表于 2006-9-10 09:57:26

电容竟然用胶固定,多难看啊,搞个电容箍不难啊!;P

TeletubbiesB 发表于 2013-4-1 00:45:20

Ems原管推800在我看来低频确实沉不下去,另外高频位置有点往中间挤,但是中频的韵味不错,也没有不实发虚的问题

711er 发表于 2013-4-1 05:06:59

原帖由 TeletubbiesB 于 2013-4-1 00:45 发表 http://bbs.headphoneclub.com/images/common/back.gifEms原管推800在我看来低频确实沉不下去,另外高频位置有点往中间挤,但是中频的韵味不错,也没有不实发虚的问题
EMS的鸡管有好几套不同的,但都很一般
低频不满意可以考虑上好点的12at7,大盾的12at7和西门子60年代的E81CC都很不错,也不难找

asakiota 发表于 2013-4-1 07:26:20

樓上你挖墳挖夠了嗎

TeletubbiesB 发表于 2013-4-1 09:22:58

不好意思楼上,最近EMS的帖子扎堆,老坟又被我顶起来了,后面改PM各位玩家,一些老帖子还是蛮有营养价值的
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查看完整版本: EARMAX SILVER升级篇 ---- 62年西门子E88CC+60年风根ECC81

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