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#41 |
diyAudio Member
Join Date: Sep 2002
Location: Norway
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When designs are getting this many parts, it's a real aid to have a good pcb. I have designed a pcb that is really easy to make for yourself. It measures 33x100mm, single sided, and features only industry standard parts which should be easy to get in most parts of the world.
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Mads K |
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#42 |
diyAudio Member
Join Date: Sep 2002
Location: Norway
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Assembly drawing for PCB
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Mads K |
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#43 |
diyAudio Member
Join Date: Sep 2002
Location: Norway
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Bill of Materials
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Mads K |
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#44 |
diyAudio Member
Join Date: Sep 2002
Location: Norway
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Drill plan
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Mads K |
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#45 |
diyAudio Member
Join Date: Sep 2002
Location: Norway
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Here is the PSU schematic
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Mads K |
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#46 |
diyAudio Member
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I cant seem to download the last .pdf. Is it just me? I see 15 others have managed
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If I'm not making noise, I'm making something to make noise |
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#47 |
diyAudio Member
Join Date: Sep 2002
Location: Norway
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worked for me..
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Mads K |
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#48 | |
diyAudio Member
Join Date: Dec 2005
Location: the north
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Quote:
It is possible to download. But when opened there is an error and it does not display correctly. Error message: Unknown token 'b*9.89' was found. You better make a new version.
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#49 |
diyAudio Member
Join Date: Sep 2002
Location: Norway
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Here'a e fresh one
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Mads K |
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#50 |
diyAudio Member
Join Date: Dec 2005
Location: the north
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that was better
--------------------------------- If there is one thing I should change in SEWA rev1 is the bias resistor for MOSFET. Now R2 is VERY HIGH, 330kOhm. I would more like to have it 33k. This of course means increase C2 input cap to 1uF, to get same bass rolloff. Otherwise I have not anything to complain about. Your SEWA circuit is a very nice amplifer.
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Thread | Thread Starter | Forum | Replies | Last Post |
Tube Pre Amplifier for SEWA 7 Watt ClassA MOSFET | lineup | Analog Line Level | 285 | 25th January 2018 02:58 PM |
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