Hello everyone! I come from China, English is not good, pictures speak for themselves.
The figure ....
PCB
PCB
The figure ....
An externally hosted image should be here but it was not working when we last tested it.
PCB
An externally hosted image should be here but it was not working when we last tested it.
PCB
An externally hosted image should be here but it was not working when we last tested it.
Not sure why. If one cuts and pasts the link they show in my browser.
http://bbs.b01.net/attachment.php?aid=233376&k=b151c588494f0e4e08bf153d1a7c60a2&t=1253017095
http://bbs.b01.net/attachment.php?aid=232462&k=bbfb858411a5341aa725ea9163ae402c&t=1253017064
Or if I click on the above link go to the address bar and then press enter on my keyboard.
Try downloading the pictures and then attach them to a message instead of linking.
http://bbs.b01.net/attachment.php?aid=233376&k=b151c588494f0e4e08bf153d1a7c60a2&t=1253017095
http://bbs.b01.net/attachment.php?aid=232462&k=bbfb858411a5341aa725ea9163ae402c&t=1253017064
Or if I click on the above link go to the address bar and then press enter on my keyboard.
Try downloading the pictures and then attach them to a message instead of linking.
Desktop amplifier, positioning is very clear. Chassis is small, less power requirements, but I do not like thick, IC and other type of amplifier, so this will be used on the possession, NJW0302 with NJW0281 This tube sound beautiful, I remember it was a magazine Ranking No. One of them, but fortunately it would not much to say.
1, amplifier board, I heard Road, with a pair of tube amplifier for the desktop is enough.
2, the former Class of 5532, I chose ten times larger, we may here have a feeling that can not think of justice, and so many things still on the low end of something presentable and acceptable? Ha ha! No, if I remember correctly, the last of thousands of machines are all pre-class all-oh op amp.
3, power supply prices, I chose the Department of chemical capacitance, 10000UF * 4 40000 U of the capacitor, for the two channels come from enough of a transformer do I use the 250W of the EI imported cattle, why not ring-type transformer it? EI bovine Toroidal transformer with low contrast, Alto has also come to some better.
4, enter the conversion with a small relay
5, potentiometers do with ALPS 27-type, stable and durable.
6, the chassis is not said, and on the map take your time.
The standard of English is not good, poorly translated, reads as follows:
“桌面功放,定位很清晰。机箱小,功率要求不大,但我不太喜欢厚膜、IC等这类功放,所以这次会用对管,NJW0302与NJW0281这对管音色很美,记得某本杂志当时把它排行第一位呢,好在那就不多说了。
1、功放板,一声道用一对管,对于桌面功放来说足够了。
2、前级我选用了5532的十倍放大,大家可能这里有有点觉得不可思义了,这么低端的东西还上大雅之堂?呵呵!非也,如果我没有记错的,上十万的机器全是清一色的运放前级哦。
3、电源部价我选用了化工的电容,10000UF*4 四万U的电容,对于两个声道来的够用的了,变压器呢我选用的进口的250W的EI牛,为什么不用环型变压器呢?EI牛对比环型变压器低、中音还来得好一些。
4、输入转换用了小继电器
5、电位器呢用ALPS 27型,稳定而耐用。
6、机箱就不说了,上图慢慢看吧。
”
1, amplifier board, I heard Road, with a pair of tube amplifier for the desktop is enough.
2, the former Class of 5532, I chose ten times larger, we may here have a feeling that can not think of justice, and so many things still on the low end of something presentable and acceptable? Ha ha! No, if I remember correctly, the last of thousands of machines are all pre-class all-oh op amp.
3, power supply prices, I chose the Department of chemical capacitance, 10000UF * 4 40000 U of the capacitor, for the two channels come from enough of a transformer do I use the 250W of the EI imported cattle, why not ring-type transformer it? EI bovine Toroidal transformer with low contrast, Alto has also come to some better.
4, enter the conversion with a small relay
5, potentiometers do with ALPS 27-type, stable and durable.
6, the chassis is not said, and on the map take your time.
The standard of English is not good, poorly translated, reads as follows:
“桌面功放,定位很清晰。机箱小,功率要求不大,但我不太喜欢厚膜、IC等这类功放,所以这次会用对管,NJW0302与NJW0281这对管音色很美,记得某本杂志当时把它排行第一位呢,好在那就不多说了。
1、功放板,一声道用一对管,对于桌面功放来说足够了。
2、前级我选用了5532的十倍放大,大家可能这里有有点觉得不可思义了,这么低端的东西还上大雅之堂?呵呵!非也,如果我没有记错的,上十万的机器全是清一色的运放前级哦。
3、电源部价我选用了化工的电容,10000UF*4 四万U的电容,对于两个声道来的够用的了,变压器呢我选用的进口的250W的EI牛,为什么不用环型变压器呢?EI牛对比环型变压器低、中音还来得好一些。
4、输入转换用了小继电器
5、电位器呢用ALPS 27型,稳定而耐用。
6、机箱就不说了,上图慢慢看吧。
”
post-level voltage DC +-45V, Preamp voltage is DC +-14V, Design voltage is DC +-15V, A margin of error, input voltage relay DC4.1V, post-level quiescent current 60mA, the midpoint voltage is 3.8mV , very good.
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