| Stefanoo |
i wanted to share some pictures with you guys of my Aleph P.
Sounds is nice.
Performances of the circuit are very good.
Matching of the semiconductors within 5mV.
it's a two separate units preamplifier: PSU + line stage
It wasn't very easy to put all the parts together...but here it is...
an overall view of the outside. |
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| Stefanoo |
| a shoot of the power supply before it was wired up |
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| Stefanoo |
an inside view of the two boards and the stepped attenuator inside the metal case.
I had to re-do the attenuator because i wasn't satisfied with the values i had first chosen and the quality of the resistors used... |
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| Stefanoo |
| a view of the finished attenuator |
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| Stefanoo |
| and a last picture with the view of the rear panel |
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| metalman |
Absolutely gorgeous! :nod:
The attenuator in particular is a work of art. Congratulations. |
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| analog_sa |
| quote: | Originally posted by Stefanoo
Sounds is nice.
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Looks very nice too. It will be easy to convert it to P1.0 once you get tired with the sound :) |
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| Dennis Hui |
Stefanoo,
Very beautifully done! Such elegant simplicity.
May I ask what is the source of the cases you used?
Cheers,
Dennis |
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| Stefanoo |
Thanks a lot guys.
this is the website (English version)
http://www.hifi2000.it/default.asp?Langid=1
it's a nice factory here in Italy and they have very nice stuff.
Prices are good!
Obviously i think shipping outside of Italy wouldn't make it as convenient as it is for somebody here. |
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| Stefanoo |
Here some shots of the output at the oscilloscope.
the first picture is the upper bandwidth limit at -3dB (300KHz!!!) |
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| Stefanoo |
| the second is the square wave at 10KHz |
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| Stefanoo |
| ...at 50KHz....still a pretty nice square... |
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| Stefanoo |
| and last...at 100KHz....the square is definitely rounded down... |
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| cyclotronguy |
And capacitors by North Creek Music Systems.... very nice
Cyclotronguy |
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