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  1. GPG

    Energy production

    Microphone : )
  2. GPG

    mod an atx supply with the at2005 chip.

    Is pin6 floating?
  3. GPG

    Simulate a variable capacitor

    http://www.analog.com/media/en/training-seminars/tutorials/MT-205.pdf Google"biquad filter" and "state variable filter" for more. And of course: http://www.electrosmash.com/vox-v847-analysis
  4. GPG

    MC6802 IRQ Pulse

    Or it starts keypress scan?
  5. GPG

    LP2950 Indecision - How would you do it?

    http://www.dfrobot.com/wiki/index.php/APC220_Radio_Data_Module(SKU:TEL0005) Says 3.3V is ok
  6. GPG

    2S LiPo charger / 12V power supply - possible?

    and http://www.ti.com/lsds/ti/analog/powermanagement/power_portal.page
  7. GPG

    2S LiPo charger / 12V power supply - possible?

    As far as I can see, after much perusal of the data sheets, You can run the load directly across the battery so long as Rprog is set low enough to supply more than the load uses, the excess charging the battery. The battery must be able to be charged at this current when the load is off and the...
  8. GPG

    Simplest dry film developer solution

    http://www.dupont.com/products-and-services/electronic-electrical-materials/printed-circuit-board-materials/brands/riston-film-photoresists.html Look at the processing guide
  9. GPG

    2S LiPo charger / 12V power supply - possible?

    How much current to operate the load?
  10. GPG

    Panel display for 10K pot

    If you make it 10V it will show as a percentage Could have saved a few bucks by using a couple of these http://www.alldatasheet.com/datasheet-pdf/pdf/8898/NSC/LM3914.html .dot mode would give a good indication of position.
  11. GPG

    Total beginner... so I don't know if what I want to do is easy or hard!

    https://www.flickr.com/photos/54125007@N08/20800488814/in/dateposted/ The 4 wires going to the motor are the start and run windings. They are both connected to phase (brown) The start winding is connected to the capacitor. The run, to neutral. A meter will tell you which is which Swap one...
  12. GPG

    measuring LVDS signal

    If you have a dual channel scope that has an add button and an invert button you can take differential measurements.
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