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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by Spudboy488

  1. S

    Can you uprate 7805 voltage regulators?

    Also, check the maximum input voltage for the new device to make sure you're not exceeding it.
  2. S

    Logic Level Conversion - PIC

    If you go the NPN ("sex change"), you'll need 2 of them since the single is inverting.
  3. S

    Logic Level Conversion - PIC

    See https://www.hobbytronics.co.uk/mosfet-voltage-level-converter
  4. S

    Proteus: Need some help (and don't know whom to turn to)

    I use OrCad and the gerber outputs are text files. The file suffix varies but the content of the files is readable text. As long as there's a readme like file that describes what each file is, the board house can create the PCB.
  5. S

    reading writing to eeprom

    Don't touch your face. Head smack instead. ;)
  6. S

    Need equation to calculate frequency of 555

    It's usually in the datasheet. https://www.onsemi.com/pub/Collateral/LM555-D.pdf https://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Flm555
  7. S

    ASKING FOR PCB LAYOUT SOFTWARE SHOULD

    DesignSpark is a freeware package I've looked at in the past. https://www.rs-online.com/designspark/pcb-software
  8. S

    Counter 0 - 999 with flip flops

    Good luck trying to resurrect a thread that is almost 8 years old. You'd be better off starting a new one.
  9. S

    Free FFT program.

    You can also try changing the compatibility mode. Right-click the executable and select properties. Select the Compatibility tab. There are various options you can try to get it to run under Win10.
  10. S

    Microcap 12 is free

    License agreement when installing, first line.
  11. S

    Microcap 12 is free

    From another forum (user janoc) so I don't want to take credit but it is a really nice find so I wanted to share it. From the EULA:
  12. S

    Vanity light electrical wiring.

    You can tie the ground wire to the green screw on your bracket as long as the bracket gets screwed into the junction box with metal screws. If in doubt and probably preferred, loop it around the screw as I mentioned. (To answer narkeleptk's concern) When you took the old fixture out, did you...
  13. S

    Vanity light electrical wiring.

    If you are talking about the third wire (the one that is NOT black or white) on your new fixture, that should be a ground as you thought. Loosen the screw in the junction box that has the other wire looped under it (at about the 2:00 position), wrap the fixture wire around the screw CLOCK-WISE...
  14. S

    Vanity light electrical wiring.

    Yes. White should indicate neutral. Black usually indicates the load side. Other, non-white, colors usually indicate a switched load side connection. In the future, when replacing fixtures, take note of how the current one is connected and re-connect the new one in the same way.
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