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Old 26th May 2006, 06:19 AM   #201
Mad_K is offline Mad_K  Norway
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Looks OK at first glance, except for the 0V connection (PSU return ground) should be on the opposite side of the boards near the source resistor array edit: Remove the ground loop that runs around the board edges too..
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Old 26th May 2006, 01:47 PM   #202
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mad_K can you explain why i must change 0v PSU to other side ?
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Old 26th May 2006, 01:54 PM   #203
Mad_K is offline Mad_K  Norway
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Because all of the return current (2A) to the PSU runs through the 0V pad. You don't want to have this current running through your signal ground and mixing with the speaker return etc. In short, you will get higher distortion and noise.
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Old 26th May 2006, 04:45 PM   #204
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My PCB is done...
I don't have 0.6W Resistor can I use 0.5W Resistor For R7,R12-R16 ?
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Old 26th May 2006, 06:00 PM   #205
Mad_K is offline Mad_K  Norway
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Yes you may They are dissipating 1,2W (together) at 2A bias.
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Old 26th May 2006, 06:06 PM   #206
Mad_K is offline Mad_K  Norway
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Default Proto PCBs arrived today ;-)

I'm going to try te get them assembled and tested during the weekend. If everything is OK, I can ship them next week
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Old 26th May 2006, 06:41 PM   #207
Ryssen is offline Ryssen  Sweden
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Ohh,goldplated.
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Old 26th May 2006, 07:56 PM   #208
Mad_K is offline Mad_K  Norway
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Partial assembly..
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Old 26th May 2006, 08:38 PM   #209
Mad_K is offline Mad_K  Norway
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Assembly completed. I think I'll take a break now and test them tomorrow
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Old 27th May 2006, 12:08 AM   #210
jleaman is offline jleaman  Belgium
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Quote:
Originally posted by Mad_K
Assembly completed. I think I'll take a break now and test them tomorrow

WOAH! looks nice.. I love smd stuff. I should post a pic of what i just completed

When are we able to buy them from you ? When i purchase mine would you mind including the smd resistors and the smd transistors for a few extra $$

I just did a order for 20 resistors ( smd from mouser ) and well the resistors were 1$ us and the shipping was 12$
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