Saturday, June 23, 2018

The ATORCH "Purple Fan" MOSFET Destroyer and "150W" Load Bank

At this point, having read the title, you can probably guess my overall opinion on this little work of art...

Following up my previous review of some 150W load banks, I've got another load bank on my bench for analysis.  This one is alternately sold as a 150W discharge tester, a 185W discharge tester, and probably other stuff I haven't found.  It has a purple fan, a high resolution LCD, and two knobs on the right, plus a boatload of USB ports for input.

And it's a steaming turd of a unit you should never purchase.  However, I did manage to get most of a review in (and a lot of MOSFET replacement practice).  It does work, for limited values of work, so come see what I found!

Tuesday, June 19, 2018

New kid, and on birth centers

Some of you may wonder about the lack of a post last Saturday, and if it indicated something like a new kid being delivered.  Wonder no more!

Rowan Elijah.  Born Saturday, June 16, at a massive 9 lb, 2oz.  Or 4.14kg, if you prefer!

At a birth center.  A what?  Keep reading!

Saturday, June 9, 2018

A Tale of Two $30 Load Banks: 60V, 150W, one awesome, one junk

It's rare to find something this interesting in the Chinese Electronics realm.

What I have here are two different units - that look identical at first glance!  And, actually, they look identical until you really dig in and stare at details.  But one is really, really good, and one is so comically bad that it probably won't last an hour in actual use before blowing up.

How do you tell them apart?  Is the good one any good?  Read on to find out!

Saturday, June 2, 2018

Building the "Ultimate Compost Bin"

I'm a bit ashamed to admit that I didn't have a good compost bin for my property up until fairly recently.  I built a barrel composter some time ago, and... well, it doesn't work for what we're doing.  I can't feed it bulk material, and it doesn't do a good job with our kitchen waste either.

So I built something better.

This is, according to Organic Life, the "Ultimate Compost Bin."  Why would you build anything less?

Saturday, May 26, 2018

What's the Difference Between a $150 and $600 MPPT Charge Controller? The MakeSkyBlue MPPT

If you go looking for solar charge controllers, there's a wide range of hardware out there, for a very wide range of price tags.  My office normally runs the main array on a $600 Midnite Classic 200 - but I've spent some time recently running my main array on a $130 MakeSkyBlue MPPT unit.

On paper, this little Chinese unit is comparable to a Midnite Classic 200!  You can get them rated for 60A output, they handle up to 190V open circuit on the solar panel side, and they're a quarter the cost!  What you can't find are any actual reviews of the unit or details on how they function.  There's a tiny bit on YouTube, but none of the videos I've found dive down into the nitty-gritty of operation.

Are they any good?  What do you gain or lose with this unit as opposed to one that's 4x the cost?  Well, you might be able to expect that I'm about to dive into that with my usual amount of detail - and you'd be right!

Saturday, May 19, 2018

Why a Typical Home Solar Setup Does Not Work With the Grid Down - And What You Can Do About It

During 2017, I saw a lot of news articles talking about how the Evil Power Companies were being Meanie McMean by not letting people with solar panels use them when the grid was down.  The implication (in many news articles) was that these powerless people with solar panels could use them to power their home while the grid was down, if only the evil power company didn't require that solar not work if the grid was down.  The picture painted was one of power company executives, twisting their mustaches, cackling in the glow of their coal fired furnaces, going on about how if they can't deliver power, nobody shall have any power!

That sentiment (and those similar) is somewhere between "showing extreme ignorance of solar" and "actively misleading," depending on the author's knowledge of solar and how it's typically implemented.

So, of course, I'm going to do better.  Because I can.  And because I'm sick of reading that sort of nonsense on the internet.  You will be too, after understanding the issues.

Saturday, May 12, 2018

Property Progress #1

A few weeks back, I started out with my "PIREPS" series of posts - thoughts and photos from random trips I've made via small airplane.

This post starts a somewhat infrequent series of "property updates" - general updates on our property, and some feedback on what has or hasn't worked particularly well for us.  Some ideas have worked wonderfully, some... haven't.  It's hard to find anyone else who documents similar projects online, and I'd like to help fix that where I can.

Curious as to how the trash trailer is working?  How about what I'm doing with that ancient tractor I own?  Well, I answer all that, and more!  Read on!