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  1. KJ6EAD

    What connector is this and how do I find things?

    Connectors are broadly classified by their manufacturers as "circular" or "rectangular" and by basic function "wire-to-wire", "wire-to-board", "board-to-board", "bulkhead", etc. The pin pitch (distance between pin centers) is the next important criteria followed by pin size and shape and the...
  2. KJ6EAD

    How To Annoy Those Helping You Out

    True enough. It's still a camp fire but now everyone can sit close enough to hear the elders speak.
  3. KJ6EAD

    DPDT Latching switches

    That's only SPST. The Zippy (Taiwanese) P1 series is what I often see. Try building a part number and search for it. http://www.zippy.com.tw/sw/show_detail.aspx?ps_rfnbr=326
  4. KJ6EAD

    Need help identifying switch

    That's a good point. My information came from the manufacturer and may have been a functional rather than technical description.
  5. KJ6EAD

    Need help identifying switch

    The switch used in the Federal Signal 660000 control unit shown in the original post is a 3-position slide switch. It's available as a part from them.
  6. KJ6EAD

    Help making remote control LED lights

    Just as an example, you can buy a 9-channel (dry contacts) receiver with a long range antenna for $110. Remotes are around $20 each. Getting each remote to only actuate 1 unique channel on the receiver may be the hard part. http://www.gamainc.com/remote-controls/
  7. KJ6EAD

    Need help identifying switch

    It has that "Switchcraft" look to it.
  8. KJ6EAD

    full size animatronic Dinosaur sound board help

    Maybe you can replace the sound module with one that you can understand and control. http://robertsonics.com/mp3-trigger/
  9. KJ6EAD

    Need help finding brand name.

    If they have any markings, they'll usually be on the wire entry end of the connector body.
  10. KJ6EAD

    Adding an LED to a device

    It looks like there are two LEDs and one of them is dual (capable of displaying three colors). If you plan to remote mount the dual unit, you'll need a compatible substitute, not just a single color LED.
  11. KJ6EAD

    Multiple astable 555's

    As you've discovered, a simple square wave isn't very musical. You're attempting to create polyphony which will be a significant improvement. This is what the early pioneers of analog music synthesizers did. If you make your extra oscillators run an octave away from your fundamental tone, above...
  12. KJ6EAD

    Soldering Skills - hilarious!

    Clive Mitchell having us on. I suspected as much before I watched it. He's made hundreds of videos tearing apart, reverse engineering and hacking cheap Chinese electronic gadgets.
  13. KJ6EAD

    Thanks for the help

    I wanted close-ups of the comms. o_O
  14. KJ6EAD

    A long overdue courtesy reminder .....

    I agree and often will signify such by simply clicking the "like" button. I believe failure to read is the most common cause.
  15. KJ6EAD

    Need to add external WiFi antenna

    It looks like the footprint on the board was intended for a right angle connector. If it were mine, I'd make an effort to find the connector that fits and install it, but that's just me. You should note that many antennas intended for WiFi have reverse polarity SMA connectors instead of standard...
  16. KJ6EAD

    EMS/Police Lightbar conversion

    Light bars often require more amperage than you'd guess so it's possible that your supply is too weak, or you may have the wrong polarity or some other wiring error.
  17. KJ6EAD

    Troubleshooting: LED lamp

    I suspect that your panel is designed with a dual input lamp test feature and had neon bulbs installed originally. If so, you should consult the panel designer before upgrading to LED.
  18. KJ6EAD

    Troubleshooting: LED lamp

    There may be an arc suppression capacitor in the switch that's providing a sneak path for AC.
  19. KJ6EAD

    Looking for specific SMT LED

    It looks like a standard "piranha" led with a custom lead frame design for automotive use. It has the advantage of extra heat sinking.
  20. KJ6EAD

    Change the color of an LED strip to white(without controller)

    Typically, runing all three die at full current does not give a good white color and one or two colors have to be reduced a bit.
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