Recent content by fizz_it

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    How do i build a electronic wire strippers?

    Not sure of the practicality but could you use liquid nitrogen and cause the insulation to break off? I bet you could do a great deal of wire at a time.
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    Determining communication direction in SPI ports

    I'll give it a try, thanks!
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    Determining communication direction in SPI ports

    I understand the protocol and can list the data that comes out of the communications channel quite easily. The question is how do I determine the direction of the data without a slave select line? One side of the of the communication channel always clocks but I know that there is...
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    Determining communication direction in SPI ports

    Hi I have to reverse engineer/decode the communication on a two wire SPI bus, there is no slave select line to help determine master and slave. How do I determine which side is communicating at any point in time? I think I can determine which side is the clock with a couple of back to back...
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    What does it take for hydrogen to form from protons and electrons?

    Thanks Russ I am looking for more in depth information about the capture process. I really don't expect an answer to the question but rather someone who can point me in the right direction, something to read.
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    What does it take for hydrogen to form from protons and electrons?

    Hi What does it take for hydrogen to form from protons and electrons? I have searched quite a bit and the only information that I have so far is from this webpage http://www.Newton.dep.anl.gov/askasci/phy00/phy00843.htm from the webpage ------------------------------ To form a hydrogen...
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    Reducing RF power of video transmitter

    I second that. Your batteries would last longer as well. If there is an external amp in the circuit, typically there is a resistor that is tied to the output of amp. This is a current limiter that sets the output power. It should have a value from 1 to 300ish ohms. Replace that one with one...
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    Reducing RF power of video transmitter

    Try it without all of extra stuff. If it works, declare victory and move on. If not do all the other stuff. There are ferrite beads that work well in the 2.4ghz band. If you have a battery as a power source, I can't imagine that you need a cap. All of the other suggestions are good design...
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    Reducing RF power of video transmitter

    Lars - You can buy them in a variety of attenuation levels The various part numbers are listed below. The number next to PAT- is the number of dB of attenuation. And yes you can chain them serially to create any level of attenuation...
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    Reducing RF power of video transmitter

    Instead of using an attenuator with an sma connector on it use one of these from minicircuits. They are a lot smaller and cheaper http://www.minicircuits.com/pdfs/PAT-10.pdf
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    Can You Bend Optical Fibres Too Much?

    The strain sensors are called Bragg grating sensors. http://en.wikipedia.org/wiki/Fiber_Bragg_grating
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    Installing a PA System in a Training Car

    Old CB radios often had a PA output, I bet you could buy one on eBay for next to nothing, the speaker output is 8 ohms so you can go right to a PA speaker
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    Struggling with Calculus? Here's How to Master the Concepts and Applications

    Two books that I really like how to ace calculus how to ace the rest of calculus both by Abigail Thompson These books are fun to read and they explain calculus very well good luck
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    EE PhD QE Prep: YouTube Lectures on SPP, Magnetic Field, etc.

    Hi Matt - I 've started watching the videos and they are great. Any chance you could publish the order in which they were intended to be viewed? This would help. Good luck with the verbal comps
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    Where Can I Find Ferrite-Impregnated Silicone or Epoxy for RF Noise Suppression?

    Ferrite is used for their RF lossy energy absorbing properties. Check out - I didn't have to go very for for a good explanation https://www.physicsforums.com/showthread.php?t=183148 If I put the EMI shielding on the board it will 1 - require that I connect it to ground 2 - short...
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