Recent content by frankwas

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    Motor to drive a metal disc

    Thanks very much! I appreciate the reply!
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    Motor to drive a metal disc

    Thanks very much! One more question, which motors are the best to use in this case? Stepper, geared dc or normal dc motors?
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    Motor to drive a metal disc

    Hi all. I am busy working on a project that will turn a disc, just a plain steel disc with a rod attached to it to simulate a steam train's piston action. I am now looking for the right type of motor for this. The disc is approx. 1 kg, possible less. I want to know if a stepper motor might work...
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    LAN LED

    Hi All! Ante, if you're reading this I might have found a solution to that other laptop project. Can anyone please tell me if it's possible to build a circuit that can be connected in parallel somehow with a normal ethernet cable, and then drive an led that blinks on transfer? Like the...
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    16V 3.5A from 12V battery (17Ah)

    Thanks again for all your feedback! I'm gonna have a crack at this and see what happens!
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    16V 3.5A from 12V battery (17Ah)

    Thanks a lot for your help Ante!
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    16V 3.5A from 12V battery (17Ah)

    Thanks Ante! That's perfect, but I would like to build it myself :). Is it difficult to build something like that?
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    16V 3.5A from 12V battery (17Ah)

    Hi all. Can someone please help me. I have an old laptop that I want to make REALLY portable. I want to take one or two 12V batteries and run my laptop from it. The problem is that the laptop needs 16V at 3.5A. Do you have any suggestions on how I could do this? I'm not expert but I was...
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    Power car amp from PC PSU

    Thanks for your replies guys! I'm gonna play around with it and see what I can come up with. Really appreciated!
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    Power car amp from PC PSU

    Hi all. Can anyone please help me with the following: I want to power a car amp from my mains power supply (220V, 50Hz). I have read and searched around, but haven't found anyone that could really tell me exactly how to do this. My idea was that I take a powerful PSU, about 600W or so and strip...
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    Telephone headset using PC headset

    Hi All! I haven't been here for a while! How is everyone doing? I just want to say thank you to everyone who posted replies to all my other questions and topics I had! I really appreciate it! I have a new, small project that I would like to build. I have searched for a while now but didn't...
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    DC digital ammeter

    Hi All! Just wanna say thank you to all that have helped me on the other project for the power supply for the amp. This is actually a supplemetry post for that amp psu. I was wondering if anyone has some ideas how I can build a 0 - 60A dc digital ammeter because I want to find out exactly how...
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    Power supply for car amp

    Hey. Ok, that sounds about exactly what the amp is made up of. I'll hook it up and then see what I get and post back. I also need to get a cam for the snapshot. As soon as I have done this, I will post back as soon as possible! The amp isn't 1400W rms, the RMS of the amp is about 300 - 400w at...
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    Power supply for car amp

    Ok. I have looked inside, and all I can see is a toroid-like inductor and a few caps. Should I measure the voltage rating and go from there? What type of psu would I then need?
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    Power supply for car amp

    Hi all! It's been a while since I last posted here. Thanks for everyone that helped on my previous designs!!!! Now, I have yet another idea that I want to build. I have been searching around the net for a car amplifier psu but  to no avail. I found a psu that uses TIP transistors with a 24V 35A...
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