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  1. J

    Thoughts on a mineral oil bath?

    Stainless is generally a poor conductor of heat. Nickel silver is much better. I struggled with this problem and was able to solve it with a storm shelter cut into a hill. I know you can't do that directly, but perhaps you could build up a sand hill that will drain well. I have my panels...
  2. J

    Off grid but still receive a utility bill

    Isn't English fun? "Mama, throw me down the stairs the broom."
  3. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    Wow, that AI is so good it can turn one significant digit into five!
  4. J

    What Mini-Split did you use, and Why?

    Holy cow. We keep our central AC at 78 during the day and 76 at night. We have found that AC makes you soft, so we compromise and keep the humidity down during the day and sleep well at night. I'm usually nekkid with one sheet halfway over me, and my wife has on jammies, a sheet, and one thin...
  5. J

    Off grid but still receive a utility bill

    Meanwhile, the power plant probably used to burn coal and was forced to add exhaust scrubbers in stages to keep up with changing standards, then most likely switch to NG or some other fuel.
  6. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    1:5 followed by 1:6 would give you 1:30. Or try a car timing belt. Very durable.
  7. J

    Dad Jokes (let's hear your worst! ;-)

    Maybe she is too cosmopolitan. Or dumped you for Rob Roy. I'm sure this story has a twist!
  8. J

    Dad Jokes (let's hear your worst! ;-)

    My guess is she didn't have enough spirit. Or maybe not enough garnish. Heck, maybe you are just old fashioned!
  9. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    The circuit diagram shown for the rectifier implies a Y configuration since it only shows one wire per phase. Tie the other ends of the coils together, but do not connect that to the - pin or anything else.
  10. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    In other words, you cannot tie the AC neutral to the DC ground. Doing so would reduce the rectifier to half wave.
  11. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    That is a full wave, three phase rectifier. The product page you showed has a hookup diagram: This is the same as the diagram on the tutorial page you posted. You can test the diodes using your meter and referring to the diagram.
  12. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    The meter is probably fine for its intended application. You may need a "True RMS" meter to accurately read what you are doing.
  13. J

    What was your most interesting recent non solar project?

    Off to the Dad Jokes thread for you!
  14. J

    Dad Jokes (let's hear your worst! ;-)

    Didn't you mean, "AC what you did there?"
  15. J

    Dad Jokes (let's hear your worst! ;-)

    Only if somebody can rectify the commentary first.
  16. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    In order to measure power you need to measure volts and amps at the same time. Open circuit voltage is not the same as voltage under load. A set of car headlamps or other incandescent lamps is a decent load. A battery is a poor test load because the load depends on state of charge.
  17. J

    Off-grid: illegal in Florida?

    Minimum charge at my lake place is now $35 per month, and that includes no energy usage. I'm happy with off-grid.
  18. J

    What was your most interesting recent non solar project?

    Looks like a Wheel Horse to me. Very versatile.
  19. J

    What was your most interesting recent non solar project?

    You are missing out on the Zen of welding. Keeping a decent bead while shaking the slag out of your flip flops is only possible by clearing your mind and becoming one with the process. These flip flops recently broke, but you can see the small round holes from slag dropping into them while...
  20. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    If you have ever showed how you actually hold the coils down, I missed it in the remainder of the discussion. I don't see any bosses cast into the coil sections that might (for example) allow an occasional screw to secure them to the framework.
  21. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    But your peak isn't 9.8v, your peak-to-peak is 9.8v. You still need to divide by two.
  22. J

    Who’s Afraid of Retail Electricity Rate Reform?

    You seem to think that owners of a company should not get compensation for their investment. It is rather obvious that you have never owned a business. They don't last very long if all they do is lose money. Making a profit on your investment is not greed, it is the only way to keep a...
  23. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    Would that it were so simple. The RMS (DC equivalent) value of a sinusoidal AC waveform is 70.7% of half of the peak-to-peak voltage. This is because you also have parts of your waveform that are much less than the peak. So, half of 9.8V is 4.9V, and the RMS voltage is 4.9*0.707=3.5V. Now...
  24. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    I bought some really good Orgeat a few weeks ago while on the eclipse trip, so I opened it last night and made a couple of Mai-Tai cocktails with it. Shaken, not stirred. They were excellent!
  25. J

    Dad Jokes (let's hear your worst! ;-)

    We just keep taking a stab at it.
  26. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    This was bonkers years ago. I'm here for the party!
  27. J

    Dad Jokes (let's hear your worst! ;-)

    Your joke keeps needling at me.
  28. J

    Dad Jokes (let's hear your worst! ;-)

    Yeah, we should get back to wrenching each others' guts with poor puns.
  29. J

    Dad Jokes (let's hear your worst! ;-)

    We really knead a better topic....
  30. J

    Dad Jokes (let's hear your worst! ;-)

    I think I'll keep that joke in my pocket!
  31. J

    Dad Jokes (let's hear your worst! ;-)

    And to be honest, the yeast they could do is leaven the situation with better jokes.
  32. J

    Dad Jokes (let's hear your worst! ;-)

    All I saw was a bunch of crusty jokes.
  33. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    And I was posting here and there during my trip, but did not care to get into any details about anything technical. You are always free to bite the hands with food in them, but don't be surprised when they quit feeding. You are also always free to study the math and do your own calculations...
  34. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    I don't recall seeing any real details of your test setup, or even what goals you wanted to accomplish. You basically jumped from using a three-phase motor to some unknown gravity test. All I saw was a comment that something moved very slowly when the coils were shorted. That makes sense, but...
  35. J

    Building the sickest ® VAWT ever. Brilliant minds unite please!!

    It is possible that other people have their own lives going on and can't always respond on your schedule. For example, my wife and I drove 2,000 miles last week to see the eclipse from a great vantage point in Texas.
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