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EEVblog #1035 – Flaming DIY Power Supply

Smoke in the EEVblog Lab! What component failed and caught alight in the RD Tech ...

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  • BobC

    You know, seeing Sagan, and seeing how much he’s grown, has me wondering how you and Mrs. EEVblog are doing with Child 2.0, Project “Huxley”?

    • He’s doing great. A 6mo doesn’t do much though!

  • El Gordo

    Top of the bottom to you Dave,

    AY-5-3507

    That’s the IC…DVM IC!
    Larry of America, the Beautiful…Dirty, but beautiful.

  • Nic Perrin

    Is the panic alarm a Hartley Oscillator? Noticed the big Inductor has three legs.

    • I didn’t notice the 3 legs at the time. Not sure because of the COB IC in there.

  • Ryan Upton

    Isn’t the inductor in the ultrasonic receiver circuit picture on a separate circuit? The inductor appears to act as a cheap antenna transmitter to the ultrasonic receiver? It looks like the inductor and capacitor is electrical isolated from the receiver. The spate transmitting circuit may be used to test the receiver.

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