May 12th, 2016

Electro-magnetic interference from the Colorino Talking Color Identifier and Light Probe when held near the internal Ferrite antenna on the back right of a 13-year-old boombox near the bottom of the AM broadcast band. You first hear the device inactive being brought near the radio with a bit of computer EMI in the background. This gives a low buzz of stacato clicks. At about 00:08 I remove one of the tripple-A batteries and the pulse-train quickens, rising in pitch briefly, then diesels out to a few clicks and you hear a thump. At 00:10 the battery is reconnected and you hear the white noise that means the device is in standby, which usually happens if you've just used it or inserted the batteries.


  • avatar
    kb7clx 3 years, 6 months ago

    Thanks for the good comments, glad it'll be useful. :)

  • avatar
    AlienXXX 3 years, 6 months ago

    Another really nice sound. Thanks

  • avatar
    mostlyhorse 3 years, 6 months ago

    Good stuff - first part is a great intro to a home video. I will add acknowledgement - as always. Thanks very much

    3 commentss

Please log in to comment

  • Currently /5 Stars.
Wave (.wav)
2.7 MB
44100.0 Hz
16 bit
Sound illegal or offensive? Flag it!