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  1. Pharaday

    This some kind lightbulb or...

  2. Pharaday

    This some kind lightbulb or...

    Is this thing a light bulb or some kinda supernatural talisman? If it's a bulb how many volts would it take and why does it has 3 leads on it?? If it's a supernatural talisman, how many volts would it take? Pic incoming!
  3. Pharaday

    What the heck is this thing?!

    Do I get 2 questions a day? Well, this thing is a TV focus block. Anyone know how it works? I was hoping I could use it as three potentiometers but none of the terminals in the back seem to be connected to eachother. Well how CAN I use this besides focusing TVs?
  4. Pharaday

    Powering an old smoke detector

    oh wow its a smoke detector. yep, found the button. thing must be old it sounds like a jackhammer. not for fire or doorbell. I'm going through a noisemaker phase. but I like good noises!
  5. Pharaday

    Powering an old smoke detector

    So I got this old style doorbell. Might be broke. It has 3 wires coming out of a plug that can have 4. When I power the black and one of the white wires, the LED lights up. But I cant make it ring. Tried powering the other wire already. Do I need the 4th wire to that plug? Help P.S. why is the...
  6. Pharaday

    Powering oscillated peizo buzzer

    Yea so is that an amp too? I noticed it can drive those tiny peizos too. What else can it do that I missed?
  7. Pharaday

    Powering oscillated peizo buzzer

    Oops I even had the pic ready...
  8. Pharaday

    Powering oscillated peizo buzzer

    I'm trying to push sound through this little peizo buzzer for a talkbox. it's normally coennected to what I assume is a square wave generator but in rearsight, I guess it might be an amp. The circuit has 3 terminals. You put gnd to one and hot to either of the others, depending if you want a...
  9. Pharaday

    help me, signed 2 cable boxes...

    yes, I have my finger on the order online button, but I prefer to build
  10. Pharaday

    help me, signed 2 cable boxes...

    ok so I have these boxes (see pic, fig. 1) and the continuation of my science demands that I harvest its LEDs, inputs, outputs, caps, resistors etc. but then I noticed the out enclosed by a red circle in fig. 1. Now my noise engineering demands that I attempt to use these as a converter to...
  11. Pharaday

    Rotating motor direction

    I agree, Hevans. Some "random", unguided explosion happened and the particles landed just right so now we get those little tree seed\leaves shaped like an airfoil so they twirl slowly to the ground like a helicopter? Did you guys "randomly" choose what to use as a brain? Gentlemen, that was planned.
  12. Pharaday

    Rotating motor direction

    Thank you, Hevans, I see that the randomness idea was bothering you too.
  13. Pharaday

    Rotating motor direction

    Thanks, Analog, I'm glad to see I was right about the sign of the voltage wave. but let's not be confused about where to place the "arbitrariness" or you'll mess with my mind again. The randomness comes from our arbitrary decision on when to deactivate the motor. As we all know, the motor could...
  14. Pharaday

    Rotating motor direction

    And now I see your second post, minder. so you say it IS the position at activation that determines the direction? I tested that but saw no connection, unless the rotor position change can be extremely small. I pretty much eyeballed it. Either way, thank you. The concept of the motor itself...
  15. Pharaday

    Rotating motor direction

    Upon further consideration and some soul searching, and finding no "decision chip" on the motor, I thought about the power supply from the outlet. It occurs to me that it might be acting on the half wave sign (+\-) of the voltage. So it turns clockwise if the half wave is negative and...
  16. Pharaday

    Rotating motor direction

    Wait a minute, arbitrary? I need an explanation on how a machine can be arbitrary. I thought that there can be no randomness with machines or computers etc. You're saying the motor DID just oh decide to rotate a certain direction. I cannot accept this. no, there must be something that it's using...
  17. Pharaday

    Laser Beam

    Oh hey, think about making some kind of system whereby the fully-auto setting skips every few shots to simulate lowered accuracy, or if it's a damage or point based game, make the single shot mode give more damage\points. Otherwise, why would anyone not use the fully-auto mode? Unless every gun...
  18. Pharaday

    Rotating motor direction

    Hello, I recently started to regret that we got all take hΩ tests in my circμit analysis class, so I joined this forum. I have taken a rotating motor out of a broken heater. The motor was used to rotate the heater left and right with an arm. It is a synchronous motor TYJ50-8A. I took the motor...
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