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    How do I calculate the voltage drop of a full wave bridge rectifier?

    Thanks, that's easy enough!
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    Eliminating Battery Charger Noise on DIY Stereo

    Using a voltage regulator should reduce the line noise. Your best bet would be to isolate the charger from the amp, but I don't know how to do that. If you are going to use a voltage regulator, I would use a fixed regulator and if the battery pack is 14.4V, I would probably use a 15V regulator...
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    Reverse polarity

    Correct me if I'm wrong, but if you reverse the polarity at the motor, won't it spin in the opposite direction? That is, if the motor runs clockwise while positive is connected to positive and negative is connected to negative, won't it run "anticlockwise" while negative is connected to positive...
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    How do I calculate the voltage drop of a full wave bridge rectifier?

    This should be fairly easy to do, I just don't know how to do so, I was hoping someone here could help me out. I built a full wave bridge rectifier using 4 diodes. I put 116V AC for my input, and I got 103.8V DC out. I'm trying to figure out what my output is when my input is, for example, 125V...
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    Headphone jack to antenna jack?

    Yeah OK, I new there was something different about the two. What is the attenuator for? I'm mean, I know what it does, but why do I need it? Does anyone have any diagrams / schematics? I checked the project section and they seem to all be wireless modulators. Are there any ICs out there that...
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    Headphone jack to antenna jack?

    Hey, can someone tell me how to take the signal from a CD player's headphone jack and plug it into the antenna jack of my car radio? I'm not looking for a FM transmitter or anything like that. I want to unplug the car antenna, and plug the CD player into it. Is the headphone jack digital or...
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    Workings of a basic calculator?

    Now, we use calculators on a day to day basis, but how do they work? Most of us know that a basic calculator has a basic IC to perform the algorithms. I had a few questions I was hoping you could answer about this. Everything in electronics deals with logic. If a condition is true, perform this...
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    Any math'a maexperts out there? Need help rearranging this formula...

    Ha! Theres a billion and ten ways to do programs...... lol
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    Any math'a maexperts out there? Need help rearranging this formula...

    Well, I wanted a formula. I made 5 different programs on my calculator so that I can type in values and it will give me an answer. They work so well! It made getting the correct components for my 555 so fast and easy! Prog1 - CAP: Give it values: Frequency: 1.3 Hz Resistor 1: 1000 Ohms Resistor...
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    Any math'a maexperts out there? Need help rearranging this formula...

    Thanks! That works... I had F/C instead of F*C some how.... lol Thanks!
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    Any math'a maexperts out there? Need help rearranging this formula...

    I have this formula: How do I work this formula around to equal R2? I tried a bunch of times but I don't know how to do it I guess... Thanks!
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    NPN transistor circuit - Is this right? I doubt it...

    Thanks! I set it up and it clicks my mouse perfectly! thanks!
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    NPN transistor circuit - Is this right? I doubt it...

    Will the resistor at the base effect the circuit any?
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    NPN transistor circuit - Is this right? I doubt it...

    Well, I don't know what you just said..  ???  :-\ However, when the mouse button is suppressed, one of the pins of the IC is connected directly to ground. What I am trying to do is create a signal (done, with your help...) and use it to connect that pin of the chip (not "ship"  :-[) to ground...
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    NPN transistor circuit - Is this right? I doubt it...

    Well, how much current do you think is passed when a mouse clicks? I will check... Ok, This meter reads .1mA... I don't know if it is right. I don't know how to test a meter to see if the amp setting is correct. My multi meter is correct, but sadly, it is at school. :( Just real quick how do...
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    NPN transistor circuit - Is this right? I doubt it...

    The "ship"!? What is a "ship"? I have no idea what transistor I need to do this. I only have a couple of them... I know I need a NPN, but other than that, I know not. Here's my circuit: Problem with this circuit, with the 5v power supply out of my PS2 mouse controller in my computer, I...
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    NPN transistor circuit - Is this right? I doubt it...

    Point taken, I forgot about the resistor in series with the LED... By a positive signal that controls a negative signal, I mean, I want to take the logic high signal from a ship, and use that to connect the ground, or the negative terminal on my battery, to a device. I really cant explain it...
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    NPN transistor circuit - Is this right? I doubt it...

    Hi, I drew this circuit in hopes it will replace my reed relay, but I do believe this is wrong... The idea, is to make a positive signal control a negative signal. Thanks!
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    SPAM problem

    My personal favorite, make it hell to sign up.... You wouldn't do it for long... few months...
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    Random LEDs, random time on/off?

    Hmmm... Glad you brought this up. I can't believe I didn't show you... I could have sworn I did! I know I did in another topic. I wonder what you guys think of this. I drew this up some time in october. I think It will display a seemingly random light pattern. I'm considering a micro...
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