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Old 15th August 2012, 02:15 AM  
Junie is online now Junie  Philippines
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Thanks Guys,
Thanks A.wayne
Old 16th August 2012, 09:32 AM  
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Originally Posted by apexaudio View Post
Set 50mV on 0R47/5W resistors, it's 100mA bias current. If you have large heatsink set 100mV (bias 200mA).
Thank you very much APEX for helpful Technical support.
Old 16th August 2012, 01:21 PM  
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Originally Posted by johnwalz View Post
Thank you very much APEX for helpful Technical support.
Set 15mV on 0R47/5W not 50mV it's my mistake.
Old 18th August 2012, 05:49 AM  
44250 is offline 44250  Serbia
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Junie.where are you? you have sr200 finished and now you don't need diy-comunity? after some listening i hope you have some new impresions about your newest amplifier?
Old 18th August 2012, 08:21 AM  
Junie is online now Junie  Philippines
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Hey, I'm here man.
busy again
Old 29th August 2012, 04:08 PM  
Vostro is offline Vostro  South Africa
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Ive Etched and started to built up the New pcb from Alex_MM SR200 Ver3.1

I have some questions,
1.) I see Mr Alex included 2x100nf decoupling into the 'signal' ground from the 15V rails,
I don't see this on the Original Circuit Diagram, just wanted to check if this is best to add ot leave out ?

2.) I need the voltage rating of two capacitors,
C9 ? I'm guessing it should be a high voltage ?
C7 ? I'm guessing that a low voltage would do,
But Id prefer to know what Voltage rating is correct,

In attached picture is my litttle amp progressing and the SR200 v3.1.
Thanks so much
Attached Images
File Type: jpg APEXsr200.jpg (560.5 KB, 1108 views)
File Type: jpg PCBCOL.jpg (744.4 KB, 1013 views)
File Type: jpg SR200.jpg (156.2 KB, 917 views)
Old 29th August 2012, 04:56 PM  
Junie is online now Junie  Philippines
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Hi Vostro,

C9 in my build is rated at 250V
C7 is 50V

Old 29th August 2012, 05:04 PM  
AndrewT is offline AndrewT  Scotland
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The decoupling should be connected to their own Power Ground.
Never to the Signal Ground.
regards Andrew T.
Sent from my desktop computer using a keyboard
Old 7th September 2012, 08:17 AM  
wiljj78 is offline wiljj78  Philippines
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Originally Posted by Junie View Post
Hey, I'm here man.
busy again
Junie, Your ONPOW button and chassi are available in Popular Electronics??

Old 7th September 2012, 09:46 AM  
Junie is online now Junie  Philippines
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Hello Will, you can buy it in ONSEMI they have different models of ONPOW.


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