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发表于 2005-1-25 01:50:49
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下面是引用念苍僧于2005-01-25 00:17发表的:
![](http://www.seas.upenn.edu/~doo/hp100a/DSC_0436-Custom.JPG)
我终于知道谁借鉴谁了 [s:38]
这个耳放的原型是在中国买的, 其他的是改装的
部分原文:
dblab hp-100a recase/mod
Well well, finally. Got the kit while I was in China over summer, just finished it. The original group buy thread is here, if you're interested.
The chassis style is an extension of the dblab ppa project, it's just longer and only one output jack is present. Four heatsinks line each side of the amp board, with MOSFETs and regulators connected with teflon coated silver wire.
Basically, almost everything on the board has been swapped out. Resistors, capacitors, etc. etc... The filtered IEC power jack has been replaced by a regular jack, and the RCA jacks replaced with a higher quality pair. A second input (aux) and pre out were eliminated as I have no use for them.
Also, the stock Hitachi J77/K214 MOSFET pairs have been replaced with higher speced (and more expensive) Toshiba J313/K2013 pairs. The pinout was different, but since I was wiring them off board anyway, this wasn't such a big problem. Also, the 8050 transistors have been "replaced" with 8050s (the kit came with some other set of transistors).
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http://www6.head-fi.org/forums/s ... 1073277#post1073277 |
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