Continued from Page 8
the spark to ground with the electronics
running on hot to neutral. True, the
ground and neutral get connected at the
box, but it made all the difference in the
world for my stove. To power my furnace
with a small inverter, I ran wires right over
to the breaker box and got a neutral and
a ground. Works good with a modified
sine wave output. Running with a deep
discharge marine battery that also
powers my pellet stove. (Check your
local Interstate Battery Co. for blems. Got
my blem 80 amp hr. battery for $40.
— Ruth Tyndell
I was reading in the Q&A column
about the flywheel re-magnetizer. You
say "you will need 88 volts to drive 27
amps through the six series coils." It
seems to me this will provide 162
ampere turns of energy. The other re-magnetizer designs I have seen seem to
be more in the range of 10,000-20,000
ampere turns of energy. They use thousands of turns of wire rather than six turns.
How can this circuit provide enough
energy to re-energize the magnets? Also,
the person who asked this question in
the magazine said that he was using six
of these electro-magnets at the same
time. Wouldn't the six magnets all work
against each other and cause problems?
— Rex Anderson
Response: Thanks for the feedback!
From your experience, it appears that Mr.
Schallot's problem is not enough turns
on the coil. My answer was designed to
give a better way of obtaining the same
ampere-turns, not knowing what was
required. I don't see a problem in
powering all six magnets at the same time,
as long as every other one is reversed so
they don't try to cancel each other.
— Russ Kincaid
PLUGIN’ IT, PLUGIN’ IT
I’ve been a subscriber for almost a
year. I have little electrical background
other than a basic circuits and electronics
course I took in my college days in the
late 70s! I remember back then working
on some projects from Popular Electronics. Recently, my son has been involved
in the FIRST robotics program. As a
mechanical engineer, I mentored students
working on the drives platform. I spent a
lot of time, however, looking over the
shoulder of the software guys. This sparked
an interest in electronics from my college
days. I started with the Mims books. Make
Magazine also featured several electronics articles. I found my way to Nuts & Volts
from one of the Make Magazine links so,
you can thank those folks for the lead!
I read each issue pretty much
cover to cover. Some of the articles I
can’t make it past much more than the
first few paragraphs, while some of the
projects I have been able to complete.
Being interested in robotics as a start, I
have thoroughly enjoyed the series on
robotics. I also read anything you have
on microcontrollers. The authors have
been extremely helpful. I have sent
Chuck Hellebuyck several emails regarding how to get started with microcontrollers and programming. The three
part series by Ron Hackett fit the bill for
my level of knowledge. I followed along
with Ron’s projects and have completed
those. That was a great jump start for me.
That opened up a whole new forum, literally! The PICAXE Forum is a great place
to learn and get questions answered.
I have also enjoyed the Near Space
series. Although this is something I would
like to pursue after I get some more fundamentals with circuits, I have purchased
my ham radio license manual and plan
to get my first level license this year!
I also pay close attention to the
project articles. Not only the theory is
good, but the practical examples of
circuit building, connectors, stripboards,
tools, etc. I have found a ton of good
info here. The parts listings are a
blessing. I have used many of the parts
listed in those parts lists! It is a good
place to start looking for options.
I have also found many good suppliers in your advertisements. Let those folks
know it works! Many of those websites are
full of good information, articles, tips, and
other links, as well as some unique parts.
I just wanted to send a note to
thank you for a great magazine and put
a plug in for some of the authors!
— David J. Pollatta
Continued on Page 65
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July 2007 63