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Excellent buy on 32768 HZ xtals — Parallax Forums

Excellent buy on 32768 HZ xtals

Comments

  • HollyMinkowskiHollyMinkowski Posts: 1,398
    edited 2010-06-09 10:49
    Also found a good buy on micro-sd sockets.
    Just wish they had better images of them and
    a datasheet. Still at 50 for 10.99 and free shipping
    I guess it's worth taking a chance.
    cgi.ebay.com/50Pcs-TransFlash-TF-Micro-SD-Card-Socket-Plug-Adapter-/170494679083?cmd=ViewItem&pt=PDA_Accessories&hash=item27b246582b
  • Computer Geek 101Computer Geek 101 Posts: 179
    edited 2010-06-09 12:00
    THANK YOU!!! I needed both parts for my laser tag project.
  • KPRKPR Posts: 189
    edited 2010-06-09 13:30
    Great deals there Holly.. Figures.. I need 4 of those crystals not 50.. and locally those 3 will cost the same as the 50..

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    I always have someone watching my back.
  • Peter JakackiPeter Jakacki Posts: 10,193
    edited 2010-06-09 13:42
    I think it's about time you setup your own webpage Holly, you seem to have an eye for finding these useful and sometimes interesting items. That way we can check in and find out all the latest goss on all that techno-nerd stuff. How about it?

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    *Peter*
  • Computer Geek 101Computer Geek 101 Posts: 179
    edited 2010-06-09 13:47
    @KPR I dont need 50 if you need 4 i can send them if your in the usa
  • mikedivmikediv Posts: 825
    edited 2010-06-09 15:44
    Pete thats so funny I was going to post the same thing,, Holly should get his own sticky .. Everytime he posts these deals I have already bought the same thing for a lot more money.
    ·
  • HollyMinkowskiHollyMinkowski Posts: 1,398
    edited 2010-06-09 17:45
    I'm looking for a really good buy on panel mount
    VGA sockets. If anyone sees a bargain please pm me.
  • HollyMinkowskiHollyMinkowski Posts: 1,398
    edited 2010-06-09 17:48
    Hey, could I use a small variable capacitor to tweak
    the frequency of these watch xtals?

    Could that tweak it both faster and slower? or just one
    way.
  • Peter JakackiPeter Jakacki Posts: 10,193
    edited 2010-06-10 03:21
    HollyMinkowski said...
    Hey, could I use a small variable capacitor to tweak
    the frequency of these watch xtals?

    Could that tweak it both faster and slower? or just one
    way.

    Well the capacitor will "pull" the frequency but the range is limited. If the circuit is designed for an external loading capacitor then it "should" work a little both ways. Personally I find that variable caps and resistors are not very stable so I'd rather have a software calibration so it may be that the software ends up adding so many seconds per day from a starting point for instance. But that isn't much help either because the temperature goes up and down usually. If you want a stable and precise time you could always read the time from a GPS module (I do).

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    *Peter*
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