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    Transistor Question

    Well, Heres a sample of the pinouts.
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    Choosing the right equipment wire?

    HEY!   Thats a great question,  Where can one find a table of the FUSING currents of common wire sizes. I have always got a big kick out of running 6ga wire to a circuit, only to see the interconnect wires inside the unit shrink down to 16 or 18ga.  I like to keep handy tables around, and I...
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    Transistor Question

    It is kind of tricky. The problem is that the test it's self could destroy the device depending on it's design.  One method is to compare the breakdown voltages of the E to B diode VS. the C to B diode.  I would have to break out my theory books but I suspect (based on the physical model most...
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    How many people here scrap old electronics?

    in my teens I longed for parts and things to rip into. In my 20s I had a whole storage shed full of 'stuff' from old ham radio equipment, to Personal computers. In my 30s I learned that my time was worth money so I suddenly realized that ordering new parts is better than spending hours looking...
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    Ball Firing Canon

    Here is a rough sketch of the Bat and Ball Idea. Build the whole thing on a platform. Then tip The platform to aim.  The notch in the tube holding The ball will help insure that the bat hits the ball At the same point each time. -Mike
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    problem of remote jammer

    The circuit produces a series of flashes in the IR range. Most TV remotes blink an led on and off at 38-40 thousand flashes per second. This high speed flashing is then switched on and off (Modulated) to send the actual data. The problem may be that the detector on your devices is very...
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    Really stupid question

    type:   CD\ that will take you back to the prompt. (Root directory) -Mike
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    Ball Firing Canon

    Hey,     We could combine those ideas! Use a spinning motion to store energy in a weighted bat And then hit the ball with the bat at the end of the swing. Still one motion.  Use a notched tube to hold the ball.  The Notch on the back will guide the bat to the exact point on the Ball with every...
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    Flyback

    The >Most< basic High Voltage fly back was from a book Called “How to build your own laser and other space age devices” (Or something like that) It was a very interesting collection of high voltage and fringe electronics Circuits that are fun to play around with. The concept is simple. ...
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    What are discaps?

    I was unclear, My bad. They are not designed for wide ranges (10uf -100uf) like variable resistors. A closer analogy is a guitar string.  They are designed to make a particular note, however it is up to the installer to tune it once it has been installed. Caps that little (pF range) can be...
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    Ball Firing Canon

    Remember that a tennis ball in normal use is meant to absorb energy and then return that energy to reverse direction.  You do not need a LONG throw to project the ball. A slug from a solenoid moving very quickly will make impact with the ball and compress it. The compression would be the same as...
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    What are discaps?

    They are adjustable Caps. They have a very limited adjustment range.  When used in a tuned circuit (radios)  They can sligtly alter the frequceny of a tank. Sometimes used in production to adjust for cheap parts by tuning systems up before they leave the factory. Other times they can be use...
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    Flyback

    Well,   I knew there was flying involved, and I knew it was the High voltage from the screen,   My first definition was             "What happens when you touch it;  You fly back"   At least I was close.   Some day I will need to test the depth of the ocean of Audio Gurus knowledge. -Mike
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    Flyback

    A fly back is just a transformer. The name ‘Flyback’ comes from television raster scan terminology. The ‘Fly Back’ is the moment when the electron beam “Flys” from the lower Right corner of the screen “Back” to the upper right corner to begin drawing The next new frame. The actual purpose of...
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    Programing an IC, how does it work?

    When you “PLUG” a chip into a programmer several things happen depending on the type of chip. Good old Eproms have a glass window (Usually round) that you can see through.  That little square inside IS the actual ‘Chip’.  The reason for the window is not for vanity or decoration.  Actually it...
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    PTZ orientation

    I have heard of such a thing but only as part of a camera package. Flipping and turning a video image is a complex trick.  I am not aware of any Digial processor chips that make this any easier.  Usually it involves a image capture system that converts the incomming signal to a array of digital...
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    very new, need help on resistors

    The circuit is in series. If you flip one switch you will get the resistance of all the resistors between points A and B.  Just imagine the lines (Wires) as pipes.  With only one valve closed at at time the 'water' must flow from A to B through a series of resistors. The photo-resistor you had...
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    very new, need help on resistors

    Resistors can only combine 2 ways. Series or parallel. In series it's easy, Add up the values and you are done. In parallel it's a bit tricky.
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    How could I stop a nickel coil from emitting IR?

    Black tape in a I.C.E? Sticky.. I would like the question about (Why) answered.  Maybe the IR or Heat isn't the real issue. Is there some 'sub-visual' bias gong on here? What little I know about 'glow plug' engines tells me that removing the coil would cause the engine to stop working. So I...
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    Need help driving two IPS1031 Low-Side MOSFETs from a PIC

    see, that’s the problem with using a CAD program to 'Sketch' something. I should have just drawn out the thing by hand and left it more ambiguous. I am not sure.  I did say that the values needed to be 'fiddled' with. I built a setup like that once but it was a while ago.  the 10Kohm should...
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