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  1. tuned99

    Extracting Numbers from file

    You might try one of two things: 1) use a "Read From Spreadsheet File" vi to try to read in your data file in numerical form or 2) use the "Fract/Exp String to Number" vi to convert the exponential string to number.
  2. tuned99

    Audio/USB connector

    I just purchased a new Samsung mp3 player which comes with USB support but does not have a standard USB connector. Instead, the USB connection is the same as the headphone jack. The USB cable itself goes from a type A USB to a 4 electrode audio plug. If I want to listen to music, I disconnect it...
  3. tuned99

    Please Help!!!

    Is the temperature requirement in Fahrenheit or Celsius & how long does the sample need to be heated for?
  4. tuned99

    A/V multiplexor - Design Question

    Is there any reason why you wouldn't want to get a premade one like this? http://www.radioshack.com/product.asp?catalog%5Fname=CTLG&category%5Fname=CTLG%5F003%5F010%5F011%5F000&product%5Fid=15%2D1982
  5. tuned99

    Refurbished/used test equipment

    Higgler, I am the first EE at our small company and there is no lab. ;) The first thing I was looking for was some simple variable 0-40VDC (approx) supply. Since I wasn't looking for GPIB programmability or high currents, I figured I'd try to save some $$ getting something 2nd hand. (For this...
  6. tuned99

    Refurbished/used test equipment

    The refurbished market is a little more pessimistic than I thought it would be. Thanks pennpoint for your recommendation and everyone else for their comments.
  7. tuned99

    Refurbished/used test equipment

    Does anyone have experience buying used or refurbished test equipment? Where are some good places to go? I've googled a few places but I have no idea if they are refutable. I'm to outfit my lab but don't need (and can't afford) the latest and greatest of equipment. I am geographically in the US.
  8. tuned99

    serial read variable length

    Yes and no. If this is your first Labview vi, I wouldn't be concerned so much with proper coding technique as I would be learning how things work and getting the program to behave the way you want. As you gain experience, I would then focus on how to write better code. Of course there is...
  9. tuned99

    serial read variable length

    One simple and arbitrary way is to start a counter with a 1ms delay (if your can tolerate it). Set a counter timeout threshold and if it reaches it, simply stop the while loop. If within that time the byte count is not 0, then reset the counter and wait for the next 0-byte condition. It is...
  10. tuned99

    need help with SMT layout

    "large bus running to multiple ICs. You set up the netlist so only the bus is in the picture then let the router at it." I'm not sure what this means, can someone clarify? I am thinking rails and planes for commonly used signals but not sure. He suggests that the multiple line bus signals can...
  11. tuned99

    Small, inexpensive 6 pin connector needed

    I've invested this also recently and I agree, Hirose is a good choice. Their 3200 series rectangular connector has an 8-pin option if you don't mind a couple of extra pins.
  12. tuned99

    200V from a 3V battery?

    Thanks for the input! I'll start with the camera dissection and proceed from there.
  13. tuned99

    200V from a 3V battery?

    I have been asked to investigate the possibility of generating a large voltage from a 3V battery. The specifications are vague at the moment but for now the range may be anywhere from 50 to 200V (single or dual supply). This is for a portable piezo driving application. Aside from charge pumps...
  14. tuned99

    fast shorting relay

    I am currently generating an AC sinusoidal signal for approximatley 60ms across two electrodes. However, after I shut off the function generator signal, there appears to be some post electrical ringing and reflection that I would like to eliminate. I would like to short the two electrodes...

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