Studio Reference Amplifier

SR-200 3D Version

Plans for the layout of components APEX By my SR200 3D version. Thanks Mile, you are good people who want to share this schematic.
I use like Alex who uses the 3 left and right 3 Cap with a value 470uF/100V.
 

Attachments

  • SR200.jpg
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I think he mean
is it better to put big 10.000uF than just a tiny 470uF :D ???

Anyway nice 3D @DAMANHURI
I hope you can realize it soon.
I just finished etching one PCB, manual draw as usual :)

I really want to finnish it as soon as posible.

Regards
I'm waiting for your SR200 John, I now again a lot of work in my office and make it happen soon, I have not check the PCB track I doubt there is something wrong.
 
Standars value SR200

Hi all, thanks to apexaudio for great schematic...

Finally I made SR200 with same value with schematic, here some pictures
(but sorry picture is not good quality)
I use 220nF/63V on VBE & 100pF/100V on colector of the driver transistor
because that what I get here, so what is the maximum voltage that I can use?

Regards
 

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  • SR200.gif
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Hello,
OK, I have not paralleled the resistor to inductor, Will do it.

Alex I mounted the transistors, and connected to psu.
Fired up and connected to mobile phone---- No sound.
Mobile disconnected Touch input pin with hand it make lots of noise and 22e resistor on psu gets extremely hot.
Checked all the connections.
Checked for shorts- No shorts.
Checked transistors for short to heat Sink- No short.
Disconnected speaker gnd from psu gnd- Psu resistor does not get hot, Connect again gets hot.

what Could be the problem.

And how do I Measure and adjust the Bias, Please Show exact procedure, I have never done it before.
that part is the design of alex :confused:
to download :D
 
Hi all, thanks to apexaudio for great schematic...

Finally I made SR200 with same value with schematic, here some pictures
(but sorry picture is not good quality)
I use 220nF/63V on VBE & 100pF/100V on colector of the driver transistor
because that what I get here, so what is the maximum voltage that I can use?

Regards

Jhon, I Like Your Drawing.
 
Nice design

Hi all, thanks to apexaudio for great schematic...

Finally I made SR200 with same value with schematic, here some pictures
(but sorry picture is not good quality)
I use 220nF/63V on VBE & 100pF/100V on colector of the driver transistor
because that what I get here, so what is the maximum voltage that I can use?

Regards
Hi Mas John bali... your pcb design is very nice... I like every your design... there's alot of space to put the componen and the heatsink .. I plan to build the stereo SR 200 using your pcb layout... can you send me the pdf file sir.. couse I make the pcb using the iron .. sorry for my english..:):)
 
Here pdf & .pcb

Ok, mas Jofual.
this is the pdf for toner transfer.
PCB size is 68mm x 200mm (saya kecilkan sedikit)
& you must set "mirror" setting on the printer.

Do have a laser jet printer?
I don't have & tried photocopier but not good, I end up with "spidol" permanent again :D . I will try another way to make PCB.

No component value!
You must find by your shelf where is component value,
because I usually not make it.
I like PCB without silkscreen :)

There also .pcb file, but I rename it to .txt
you can try open it with ExpressPCB after rename it again
Enjoy ...
 

Attachments

  • bottom(not mirrored).pdf
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  • silkscreen.pdf
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  • SRA200 NEW LEGA.pcb.txt
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Ok, mas Jofual.
this is the pdf for toner transfer.
PCB size is 68mm x 200mm (saya kecilkan sedikit)
& you must set "mirror" setting on the printer.

Do have a laser jet printer?
I don't have & tried photocopier but not good, I end up with "spidol" permanent again :D . I will try another way to make PCB.

No component value!
You must find by your shelf where is component value,
because I usually not make it.
I like PCB without silkscreen :)

There also .pcb file, but I rename it to .txt
you can try open it with ExpressPCB after rename it again
Enjoy ...

Jhon excellent contribution :)
thanks for uploading your work:cheers:
Greetings from, PERU:wave2: