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Processes and Projects Part II: Hydroponics vs. Aquaponics

Hydroponic grown lettuce

This post is another general post about processes and projects. It is specifically about me making the choice this year to go with hydroponic growing of some vegetables. Originally I hoped to do aquaponics, but there are just too many difficulties to overcome in a short time and I wanted to

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Processes and Projects.

Tonight’s post is a shift in direction. (Only momentary for those of you that want me to get back into the electronics… we will return.) I have been very busy the last month setting up a hydroponics garden. This is the first of a series talking about using the process of gardening to lead me

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Bipolar Junction Transistor DC Biasing Calculations Example.

The model of the circuit we are biasing.

It is Number Crunching Time! Tonight we set the DC Bias of the circuit shown in the first diagram. Once we do that we will run several Qucs simulations of the circuit with the numbers we calculate. We will do those simulations with different values for

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Linearity and our pencil and paper models for Electronics.

Independent Sources

Our goal now is to come up with a way to create simple models of electronic circuits. From the discussion last time “Design, Models, and Simulations“, we understand our model will be very simplified and therefore inaccurate. However, it will be good enough for our first shot before going to the trouble

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Design, Models, and Simulations

Design, if you are lucky, is based upon some calculations developed from a model of the thing you are attempting to design and construct. Often, as we have seen with the sheet metal brake project you are not lucky and we are left “flying by the seat of our pants.” Other times we know the

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More Testing Work on the Homemade Box and Pan Brake

Gap between the hinged board at 90 degrees and the base board with no metal.

Another step forward with the brake project. I cannot say the light at the end of the tunnel is very bright yet, but I am pretty sure it is not a train. I am a whole lot more hopeful

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Introduction to Bipolar Junction Transistors – Part II

A testing biasing circuit for a PNP Transistor

Tonight’s post is a continuation of the previous post “Introduction to Bipolar Junction Transistors“. In that post I talked in detail about the current flow in an NPN transistor, this post will start out with the same detail about a PNP transistor. Later I will extend

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Introduction to Bipolar Junction Transistors.

Bipolar Junction Transistors

It has always been my goal on this site to present information to help to understand every project I attempt. I am currently working on the Desulfator. Although I am primarily taking the design of someone else and building a printed circuit for it, both you and I need to know

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Debugging the Homemade Box and Pan Brake.

The stiffening bar on the back f the hinged piece

In the last Post “Test 2 of The Box and Pan Brake – Making Progress” I said I was making progress. I am beginning to feel right now I am not although I think I am. Most blogs and D.I.Y. articles do not post

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Test 2 of The Box and Pan Brake – Making Progress

Using Deep C clamps to clamp the clamping board

In the last post about the brake “The Second Baby-Step with the Box and Pan Brake , the problem I had was the clamping board slipped backward when I bent the metal. This gave me a very rounded corner. To fix that problem I purchased

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