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  • plesperance commented on Cew27's instructable Breadboard Basics for Absolute Beginners2 months ago
    Breadboard Basics for Absolute Beginners

    I am trying to find an instructable or project that adds a capacitor to the simple led circuit all I find are ones with transistors.I am having no luck getting the led to light up once I try adding a capacitor. Can anyone help me?

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  • plesperance commented on Wanka7a's instructable How to read color codes from resistors.2 months ago
    How to read color codes from resistors.

    Anyone know a reverse resistor calculator?

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  • Convert an ATX Power Supply Into a Regular DC Power Supply!

    Is there any way to get a higher voltage out? I would love to get 24 and higher.How do you determine which bundles connect to which rail? Could a potentiometer, mini multimeter and an ammeter be added without too much more effort?

    Is there any way to get a higher voltage out I would love to have anything around 24 and higher.How do you determine which bundles connect to which rail?

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  • plesperance commented on flv1991's instructable DIY Soldering Station for HAKKO 9072 months ago
    DIY Soldering Station for HAKKO 907

    I have been looking at doing the Hakko T12 soldering iron and station but there doesn't appear to be a full kit they come in a variety of kits. Would anyone know what kits you would need to buy in order to get the complete unit?

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  • plesperance commented on Ktulu_1's instructable DIY Fume Extractor3 months ago
    DIY Fume Extractor

    Does putting a fan into an enclosure produce more airflow?

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  • Changing the output voltage of a cheap power supply

    I want to raise the outgoing power to around 30 volts can it be done and if so what would I be looking for? I want to add more input power to my Variable Bench Top Lab Power Supply.

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  • Soldering tiny SMD components the easy and fast way (with a hotplate)

    I was unable to find a hotplate so I Came up with my own technique to solder small parts and since I don't have 3 hands I used the device with the magnifying glass that the call a 3rd hand to solder the tiny resistors on a PCB. I used the alligator clip to hold the solder I then positioned it over the pad that I needed to solder and once one side is soldered in then it's easy to straighten and solder the other side, I used a rotary tool to grind a tip down to a very fine point as well and of course antistatic tweezers. It took me a fairly long time to figure this out and this is how I found this article in the 1st place, I didn't have the needed items and that's when this idea came to me. The 1st thought I had was to try and get something to hold the iron kinda like a spot welder but it...see more »I was unable to find a hotplate so I Came up with my own technique to solder small parts and since I don't have 3 hands I used the device with the magnifying glass that the call a 3rd hand to solder the tiny resistors on a PCB. I used the alligator clip to hold the solder I then positioned it over the pad that I needed to solder and once one side is soldered in then it's easy to straighten and solder the other side, I used a rotary tool to grind a tip down to a very fine point as well and of course antistatic tweezers. It took me a fairly long time to figure this out and this is how I found this article in the 1st place, I didn't have the needed items and that's when this idea came to me. The 1st thought I had was to try and get something to hold the iron kinda like a spot welder but it wouldn't have worked, there is another way as well you can drop a bit of solder on one of the pads then you use the tweezers to hold the part heat the solder and position the chip in place this works fairly well but you have to have a small tip. Note: if you do try using what I refer to as teh presoldered pad only do it on one side and don't put too much solder on the pad all you want is enough to tack it down then solder the other side and add more solder to the pre-soldered pad if necessary. if you put too much solder on the pre-soldered pad it will make placing the chip or resistor straight and flat against the pcb

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