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Old 01-16-2017, 11:24 PM
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alchemist alchemist is online now
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Originally Posted by yooper View Post
Or .. you could put those diodes on the shelf , take the easy way and order that bridge rectifier that I linked in your other post
I would consider this. Good advice
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Old 01-17-2017, 08:24 AM
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Originally Posted by JohnBoy View Post
do you know anyone working in IT?

PC processors will have big alloy heatsinks on them, find somwhere that takes in electronic waste nearby and bring some donuts/beers with you.
John, I have those in hand, and it is very difficult to mount a turnip diode onto that unit, as it has a 5/8 fine thread stud. They are very effective but would be mangled drilling a hole in the center for the stud.

That is why I use single cylinder air cooled aluminum heads from lawnmowers or such. Ample mass, easy mounting, and has fins and holes to bolt the cables to.
“After all, no one is stupid enough to prefer war to peace; in peace sons bury their fathers, and in war fathers bury their sons.”

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Old 01-17-2017, 11:13 AM
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On the AC welder I converted to DC I just used simple aluminum plate to mount the diodes to. Checked it after several minutes of continuous welding and they weren't even warm. Use a heat sink adhesive too as it will conduct the heat transfer much better.

Loyalty to the Nation all the time, loyalty to the Government when it deserves it. Mark Twain
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Old 01-30-2017, 08:50 PM
yooper yooper is offline
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Its' been almost two weeks now , is this project up and running ? ?
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