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#1071 |
diyAudio Member
Join Date: Oct 2010
Location: Burlington, NC
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You can set bias post at about 3.5V and be safe to attach output fets. This will get you close to turn on voltage and allow less turning to achieve final bias. If you have FE boasting correctly, there is little you can do at this point to hurt the build. Before firing up check isolation of fets with MM set on Resistance setting, touch drain of get and sink at same time. It is the only thing left you could do wrong
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...Shape the sound , Man! |
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#1072 |
diyAudio Member
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Thanks Buzz.I've a way to go yet but pcb's are part populated and heatsinks drilled and tapped;I've just to decide on one or two chassis i.e seperate power supply casing.
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#1073 |
diyAudio Member
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Guys, is this a good sink for MUR3020W? 657-15ABP Wakefield | Mouser
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#1074 | |
Sin Bin
Join Date: May 2008
Location: Front Row Center
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Quote:
Time to finish your best one yet , the 4pr is calling ... ![]() |
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#1075 |
diyAudio Member
Join Date: Jan 2007
Location: Sacramento
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PKI,
I have those sinks on my regulator diodes. They work well. make sure the enclosure has vent holes for fresh cool air. Keep them electrically isolated, then you don't have to use silpads or mica or whatever......
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"If it doesn't work properly, hope it catches on fire"- Nelson Pass @ BA3 "I fired up the prototype. Literally." The Prophet Pass. |
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#1076 |
diyAudio Member
Join Date: Oct 2010
Location: Burlington, NC
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AudioSan was suppose to take the heat off me. Gotta finish Salas SMD RIAA for brother this weekend. Guess i got to beat that damn F5TV3 bug after all.
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#1077 |
diyAudio Member
Join Date: Feb 2009
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hehe. i'm a little stuck at the moment
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#1078 |
diyAudio Member
Join Date: Oct 2010
Location: Burlington, NC
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I enlarge my fet holes, as an M3 tap is impractical IMO.
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#1079 |
diyAudio Member
Join Date: Feb 2009
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vel. M3 is practical over here
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#1080 |
diyAudio Member
Join Date: Oct 2010
Location: Burlington, NC
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Its not about availability, but size. I would go with m5. Take necessary bolt/screw, put in fet hole, use speed of hand drill to reem out.Got perfect size hole and stronger bolt/screw.
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...Shape the sound , Man! |
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