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  1. quantum1

    Terms for Datasheet

    http://www.datasheetcatalog.com/datasheet/BC/BC548.shtml ( the datasheet for General Purpose Transistor) This site is cram pack with stuff I don't know. I am going through them and asking anything I don't know. All of these questions are on the same page. 1. Under "Features" there is "High...
  2. quantum1

    FM Bug?!

    I have heard of a bug, what is it? http://www.electronics-lab.com/projects/rf/002/index.html
  3. quantum1

    Deep Sounding Chip

    Do any of you guys no how to create a normal sounding sound into a much deeper sound through chips and what not? Thanks in advance, I have a "friend" whose voice is too high, and not deep. ;D
  4. quantum1

    Vertical line test questin

    What would be a real life function that doesn't pass a vertical line test?
  5. quantum1

    Identify Custon Chips

    How do you know if a chip/semiconducter is a Ula or custom chip? Would it sometimes be a blob of the material with no written information about?
  6. quantum1

    Fire Truck Horn

    I want to make a honk but not a beep, a really loud one like fire engine does. Schematics, information, etc. Would for fill my project needs.
  7. quantum1

    6V to 12V question

    http://www.electronics-lab.com/projects/power/014/index.html My questions are from this site. Are all transistor's code labeled on themselves so you can perhaps indentify them on a circuit board? Such as those transistors in that site. What does the term "tordial" mean in this sense? Where do...
  8. quantum1

    Circuit You've Ever Made?

    People here a lot of the time say "oh, you can get that circuit at this website and right and there but not from knowledge and experience from people like yourselves". Does anyone have a shematic that they made their own, purposely or accidently. I accidently shut my computer down while testing...
  9. quantum1

    Charger Plug ?

    The output AC voltage of my wall outlet is 120 volts. If I were to plug in a charger that specifies for 110 volts, will that effect the charging process (or anything for this matter)?
  10. quantum1

    Simple Transmitter/Reciever

    I want to build a circuit so that with a push of a button, the reciever gets the signal from the transmitter, that transfers to a transducer. Just like a TV remote except I only want one button, and have it be radio frequency transport. Example: I have my transimitter with the one button...
  11. quantum1

    TV Remote Jammer!

    Would any have a schematic to build a TV remote jammer? Thanks Like overwhelming IR diodes. I have seen a shcematic of this TV remote jammer, but I have a feeling I want see it ever again. That's why I'm asking for your help.
  12. quantum1

    Temp. Sensor

    I have a TMP 100 temp. sensor, http://www.datasheetcatalog.com/datasheet/TM/TMP100.shtml and I have question relating to the applications the datasheet provides. 1. If you scroll down to page 5, it shows the application for the chip. I know what pins 4 and 2 are, but what are the other pins? 2...
  13. quantum1

    Universal Active Filter IC

    Would any know of any schematic for this IC? And is this IC's purpose to block/except frequencies? Then what is bandpass? http://www.datasheetcatalog.com/datasheet/UA/UAF42.shtml
  14. quantum1

    Buffer

    What is a buffer, and how does it work and what not?
  15. quantum1

    Headphone Plug

    As much as I know, headphone plugs have three output terminals. The out most terminal is the neagitive, and the inner most is the positive, I believe. What is the middle terminal?
  16. quantum1

    Mystery object!

    A strand of metal wire populates some of the area on the pcb I have, and many others. It is plainly labeled "J" on the pcb. It has zero resistance, and I wonder if it just to carry current that can't get through the without short/parallel the circuit, just like a zero ohm resistor. Why is it...
  17. quantum1

    Switch Transformer

    Would it be possible to switch a transformer that is made to transform down, and make 120 volts from 9 volts?
  18. quantum1

    Any other websites like this?

    Are there any other websites like this where you can post information and chat and what not?
  19. quantum1

    Shut off devices by eletromagnetic waves.

    Is there a device that can shut off devices with semiconductors through the air. I did that once accidently while trying to build a transmitter it shut the computer down, and reset the clocks and what not.
  20. quantum1

    Metal Detector

    How does a metal detector work?
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