Search for replace in Topics

Could you replace the tubing on the Big Ball Factory with roller coaster tubing?

Hi I am looking for a replacement for a BF494. I have searched the web and I believe a 2n222 would work. Thank you! I am making an FM radio receiver by the way the schem. is up above.

I need to replace three 470 uF 25V caps but I was wondering if using 1000 uF 25V caps would work or not?

Okay... so long story short, i have this little transistor that i need the non-surface mounted version of. The part # is PHD3055E. I can only find the datasheet, And can't find it anywhere for sale. So i thought i'd come here and ask, Any ideas on what could replace this? Here's the datasheet in the google docs viewer. http://docs.google.com/viewer?a=v&q;=cache:huahl6K3DFkJ:www.datasheetcatalog.org/datasheet/philips/PHP_PHD3055E-06.pdf+PHD3055E&hl;=en≷=us&pid;=bl&srcid;=ADGEESg3724yaKjv666t2rqjyyXVjvQp5HpfKIXr3723cJt4Y_bqPXypg_oySVo3Q9eOgiMBHIG4zDYsHVk73N0whYfHI3PTtv8kTeA_FzIxSWhNnkzgniEWSIQLls8aeQVgmyBDhZyI&sig;=AHIEtbRm4XdPQEc-wzTiPkqsGwSO1qblnA

Hey Guys, I was wondering if I could make an arduino shield for programming attiny chips then can I use them instead of Arduinos as they are also micro controllers. Thanks in advance. -Prickly Potato

 I have a small model battery charger which has a resistor burnt out . output is 7.5  volts  according to the label which sounds right as pack is 7.4volts.  measured voltage from transformer  is 15 volts Can anyone tel me what value resistor I need to drop the  voltage  to 7,5 v or whatever the actual out put shoul be. thanks people, john mantova

I've been thinking, which, for me is strange. What's stranger, i've been thinking about saving the planet. I don't believe that global warming is solely the fault of man and his machines, nor do i believe that we're all going to fry in a ten-thousand year summer, but that's not the point of this forum, and i'd appreciate no comments labelling me as a communist, or a planet-hater. What i had in mind is a new system of lighting. Say i took some LEDs (lets say 16) and connected them in paralell, and attatched them to the appropriate power source, would they be more or less efficient than a tungsten filament lamp? As for aesthetic considerations, to simulate natural sunlight during winter months, one could add blue or yellow LEDs to tune the shade of the light. Would this idea be more efficient than the lights we have? (i avoided mentioning those energy-efficient lights because they're not really that efficient, and give crap light.)

I own a Matronix 500 in one electronic lab. I was experimenting on my own and I accidentally overloaded the LED's and broke them. can someone tell me how to replace them? 

Hi everyone,I just want to know if there's anything that could replace a step-down transformer i.e,Step down 220 volts(AC) to 5 volts(DC).I want a thumb nail sized transformer for my purpose but its hard to get,so if there;s something more compact and can replace the transformer,things would move on awesome!

It it possible to use simple components, arranged properly, in order to replicate the use of a simple IC, such as the 555 or LM386? If so, where could I find diagrams of the internal electronics? Google has turned up nothing so far... Thanks!

Well, got an old Dell Inspiron 8600 and if you've read any of my other questions  you know all about it and its problems. Anyway... the cover for the point stick (mouse thing in the center of the keyboard) needs to be replaced, but this being my first laptop, I'm not quite sure how to do it. Personally I just want to pull it off with a some pliers and jam a new one on, but I don't want to break it either.... so I'm exercising alittle caution by asking first.... is there a specific way to do it, or is my way just about right? Thanks

Is there a way to replace windowsills without taking out the windows

My wife recently replaced pockets in some jeans. It would have much easier if we could have removed the rivets and then replaced them (or similar ones). Anyone know how to do that ?

250v185j cl21 capacitor  burned from  old portable rechargeable fan what can i do.. pls help me for  replacement capacitor in india

Today I went into the At&t store to see if I could get my broken lg vu replaced.  They said that the Lg vu was discuntinued, and I would get a samsung phone.  Does anyone know what phone this might be?

Our In-Sinkerator disposal is shot (15 years old) and I want to place it with the same model. Is this something I'd be better off having a plumber do? I'm pretty handy myself.

I thought this was so hilarious I had to share it. I hope it's not considered too Non-PC for the forum.

I have an Asus M3A79-T Deluxe motherboard I recovered, and one of the capacitors looks to be ripped out of place. Does anyone know where I can buy or find the correct replacement capacitor? I have identified which capacitor it is I just am lost on as to where I can get another one. It has this on the capacitor: Some obscure F in between two lines 89He 101 16

Hi, So I have a AA battery pack inverter for some EL wire, and I was wondering if it was possible to replace the AA battery's with a lithium Ion battery to reduce its size. What kind of voltage should I look for/do I need to take into account amperage?

Apparently Microsoft has found that Vista was a bad idea and so is producing a replacement which is said to be coming out in 2009.So if we put in Microsoft's usual lateness with release it will be 2010 before anything appears.Edit: Its called Windows 7 and wikipedia has an article on it.http://en.wikipedia.org/wiki/Windows_7

My AC Return/Supply is in my garage and appears to have some cheesy work done by the construction workers when they installed it, keep in mind this house is 10+ years old. I was hoping to replace and re-install some new drywall and was hoping for some recommendations on how to  approach this situation. See photos for details.

Hello, I have a old hair clipper.  It has a rechargeable battery in it, which does not charge very well. I opened up the clipper and it has a single battery. It reads d-2/3a700 mAh 2.4 v. What do I need to do to replace with a capacitor?  Like resistors and such. If I wanted to get it to charge quick.  And use it quick. thanks

There is a potentiometer on my $500+ vintage guitar pedal that i recently broke off. Any suggestions to glueing it or figuring out a way to put it back on? The knob is the only part that is off and i still have the knob.

. I was wondering if anyone knows a supplier for a FFC converter/adapter so I can replace a viao laptop LCD with an HP one I have on hand?  I'm trying to use on hand parts to build a diy lcd projector, and thee vaio lcd has serious issues that reduce it's usable screen real estate, IE, dead pixels, lines running top to bottom...  The HP just has a broken backlight, but it's motherboard is trashed. 

I won a  mouse on ebay for $0.01. now i am annoyed with the red led due to the mouse transparency. i want to know if i can swap the red led with an infrared led just to get rid of the red light and still has the same performance By the way. there was another blue led in it that i chopped out without hesitation.

Hi, I have what can only be described as a "no-name" laptop sitting in the bottom of a drawer. Among other things it has a missing "G" key. The problem is I have absolutely no clue how to replace the key - I'm not going to pay for a whole new keyboard and the key + "springy bit" is long since gone. The only branding I can find is "Clevo M300N". I was hoping to buy a broken laptop and cannibalise it (there are other hardware issues, but the keyboard is driving me nuts) Can anyone give me a shove in the right direction here? (Sorry for rambling) Edit: UPDATE - I found the key, all I need now is some kind of spring or membrane to fix it right up!

Do you think it would be possible to substitute a variable resistor and a normal capacitor for a variable capacitor? The way I figure it is that a variable capacitor is supposed to adjust how fast said capacitor charges and discharges, wouldn't a variable resistor and a normal capacitor also function like this? I'm working on an idea for a small am radio, and looking to substitute these parts. Could it work? Thanks

So i made a laser alarm system some time back, it worked good but had one fault, more like a limitation. it made the buzzer ''buzz'' only when the laser was interrupted and the buzzer turned off when the laser was allowed to hit the photo sensor again. i wanted it to stay on until turned off by a switch. someone suggested something called a monostable flip flop but i had no idea what it even meant, then i saw something called silicon controlled rectifier or a thyristor, but i also learned that they have to be made using a pnp and npn transistor, what i cant understand is what transistors should i use to replace the npn transistor on my circuit, the tansistor on my cicuit is 2n3904, input voltage is 5v

 Hey I have a cheap camcorder that runs on AA's but I want to put it on a lithium battery. What I want to use is just the standard battery out of an old phone 3.2v, I'd like to use these because I have a huge surplus of them. I have pretty much no knowledge of electrical circuits and so I need of bit of help. I know two AA's is 3v and any lithium battery is 3.2v, how could I step the battery down to 3v?

The situation:I (will) have a disc of plywood roughly 20cm across. I need to cut a spiral notch in the ply, from edge to centre, around 3mm wide, so that I can hold a spiral of flexible ply in place and close off the end of the spiral at the same time.The perfect tool for the job is, of course, a router.The problem:I don't have a router.Short of buying a router just for this one job, what can I do to cut the notch?Plus:I've been saying "plywood" - is there another material that can be shaped the same way?

I have a 2006 Mini Baja Minibike(http://www.bajamotorsports.com/categories/minibikes/products/WR65_baja-warrior-mini-bike) with more than a few problems. As of now, it won't even start, and I can't find the problem. I've cleaned anywhere that fuel goes, air filter, exhaust, and adjusted the carb,  it still doesn't start. When it was running, it didn't even idle. So I'm wondering, would an engine swap with this: http://www.harborfreight.com/engines-generators/gas-engines/212-cc-ohv-horizontal-shaft-gas-engine-epa-69730.html engine work? It seems almost identical; but I"m not sure.

Sorry earlier i posted reverse of that...i saw a video on utube a man producing magnetic flux from dc current (conveted to AC with help of dc motor)..how that can be done What i want to stay is you hava a 9v battery a 5v dc motor and a capacitor ow can u produce magnetic flux? without doing any  implicit changes i mean disturbing the motors etc etc(internally)

Help! two keys popped off my keyboard, how do i replace them? i have a compaq presario f700 laptop. thanks in advance!-toogers

The only material I've researched is soapstone.

I had a thought: Since LEDs are a form of diode, can LEDs be used instead of diodes with similar properties in a circuit?

Hi there, I'm currently using a DPDT switch to toggle between power sources (gray dots) I'd like to replace this with a relay, I've added blue dots to my drawing to show (how I think) that should look. Is this correct? My main concern is if I should take the coil resistance into account. What kind of relay would you recommend? Would any 12V 2A relay work? Kind regards, Niellles P.s. the 560 ohm resistor is on the other side of the led...

Swatch watches use a different system I THINK to typical watches. I can see the end of each pin in a hole in the watch body. Can I just find something small enough to fit in that hole an push to compress the spring inside the pin?

I purchased a surplus 2-axis CNC machine with built by Yamaha. I hoped to rebuild it into a new machine for myself, but it ended up requiring 200 volts AC for the controller and motors, which I don't have access to. I sold off the controller already. I don't know too much about professional CNC macahines, hoping someone has some input. I am hoping to replace the motors with ones in the same form-factor that run on DC or 120v AC(if such thing exists), preferably stepper type. I do not know what form-factor/package/mounting style to look for, or even if any are available with the power requirements I want.  Motors are the same for both axis and are part#: TS2620N664E122, attached are some pictures. Thanks,

Someone gave me an amp, potentiometer is busted. im not in a position to order a new one, and i really dont care to. id like to wire this up with resistors instead so that it reads full open all the time. the pot is for a car amp im just going to use my input source to control the volume anyways. schematic or detailed instructions would be lovely. thanks guys.

What type of RAM do I use as well as how much? I currently Have 256 mb in my computer.

After reading DOZENS of DIY's explaining how to use an old laptop as a digital picture frame, I'm hoping someone here can provide a solution.I have an old 14" LCD computer monitor that I would just LOVE to turn into a low-cost digital picture frame. But I DON'T have a spare PC, nor do I want to bother with "booting into Windows/Linux/etc" just to use it. If that were the case, I'd just build a PC out of spare parts for $20. I'm looking for an easier (and less bulky) solution.I've seen DIY projects that turn small handheld media players into tiny digital picture frames, but the screen is typically no bigger than 1.5-to-3.5 inches. I can buy a *working* 3.5" DPF for the same price... not that I'd want one... with far less hassle. I'm looking to use the screen I've already got (spare it from ending up in a landfill), not buy something I don't want nor need.Maybe there's a way to connect one of these tiny media players to a bigger screen? Or maybe there's another way to display photos using something other than a PC that I'm unaware of?With all the old LCD monitors going into the trash, it seems a simple "box" that can plug into any old monitor to display photos, might be a very desirable device.Anyone?PS: I'm a "computer tech" of nearly three decades, so I already know the "complexity" of what I'm asking. Thanks.

I have an 2gen Ipod shuffle which I burnt. Now after a long while I found that an inductor cas destroyed. How can I find it's value?or Can I put a jumper instead?

If someone can find me some information on how to track down the location of my bad STK's on a projection HDTV mainboard, or any useful information I will create an Instructable with good pictures of my procedure of repairing the convergence issue on my projection HDTV. Thanks!

Recently one of the plastic clips that connect the strap to the mask for my CPAP machine broke.  They sell replacement clips for the heargear ( 8 bucks for 2 clips).  My question is would it be cost effective to get replacement clips 3D printed, or am I better off just buying the replacement clips?

I was wandering how big does a normal capacitor have to be to replace a AAA battery?

How to remove and replace ink roller in Sharp 1197S desk printing calculator

Hi! I am trying to repair a computer monitor....it has 2 capacitors that are blown. I have a replacement for the first one, but not for the second one.... My question: On the capacitor it says 330μF 25V, can I replace it with another type of capacitor? Wich number is important, the "μF" or the "V"?

Hi! I am trying to repair a computer monitor....it has 2 capacitors that are blown. I have a replacement for the first one, but not for the second one.... My question: On the capacitor it says 330μF 25V, can I replace it with another type of capacitor? Wich number is important, the "μF" or the "V"?