Does anyone know how a Tesla magnifier works?

I am considering making a Tesla magnifier once I've finished my Tesla coil. I know allot of details about its operation conditions but do not understand how the voltage gets stepped up in the extra coil, can anyone explain it?

Question by The MadScientist 8 years ago  |  last reply 8 years ago


Magnifying Lens and Solar Panels! Answered

 Would a magnifying glass/lens increase the amount of solar energy to a solar panel/cell? or would it just block the rays? i'm a bit confused because people haven't done it before and because people put glass (and silicon) in front of solar cells all the time.

Question by Houdinipeter 9 years ago  |  last reply 1 year ago


Need help in building a LCD screen magnifier for camera

You often want to enlarge the image you've just taken to see it in more detail. The problem is if you zoom-in, you are only focusing on a certain point of the image, not the whole. And if you are zoomed-in at the point you didn't like, you gotta press direction buttons to get to your desired point. I was always bugged by this problem until I learned the existence of LCD screen magnifier from my instructor. This kind of item: http://www.amazon.com/Hoodman-H-LPP3-HoodLoupe-Professional-3-Inch/dp/B001N0KEWU/ref=sr_1_2?s=photo&ie;=UTF8&qid;=1280803022&sr;=1-2 What's cool about his magnifier was that he built it in his own, which is a pretty smart idea given that those things cost around $100. Can any master craftsman of Instructables help me with this?

Topic by oversandal 8 years ago



large magnifying glasses to heat swimming pool?

Why cant you use the large magnifying glasses if seen used to melt metal etc. to heat a pool by pointing them at the water instead of all the solar panels and black pipe?

Question by djlayman 5 years ago  |  last reply 5 years ago


whats the difference betwene a slide projector lense and a magnifying glass?

I need to know pleasseee

Question by xadevox 9 years ago  |  last reply 9 years ago


How to limit light thru magnifying glass

I'll try to make this short and to the point - Does anyone know a way (or could think of a way) to make a device that would fit onto a magnifying glass or similar, so when the magnifying glass is used to burn wood/start fires, the burn mark is not as thick? Thanks.

Topic by Bran 11 years ago  |  last reply 11 years ago


Video Magnifier for my visually impaired daughter

I am in desperate need of the plans or any help in building a video magnifier for my daughter. The video magnifiers for sale are way outside my budget. They start around $1800. It would need to be able to be used through a tv or computer. Any help in this would be greatly appreciated.

Topic by The1pdub 11 years ago  |  last reply 6 years ago


Need help hacking lighted magnifier headband...

Hi! I have a headband magnifier for working with tiny models, and it has two lights on it, one on either side. Each is self contained with a switch and battery connectors for 2 AAA batteries, and a small incandescent bulb (see pic).  What I would like to do is hack this and make it use LEDs  I am "ok" with certain skills, like soldering and such, and have the tools.  I am hoping someone can tell me what LEDs I can use and resistors I might need to make this work within the existing housing.  Thank you!! 

Question by kurtnotkirk 6 years ago  |  last reply 6 years ago



Is it possible to mirror a phone to an old monitor that i just found at the garage?

So, i work with small items that need magnification, i want to use my phone's camera to zoom in on the piece with a magnifier app while being able to view it on a screen while working. Is it possible to do it? If so, what will i need to make a DIY prototype of this? What are the parts that are required to pull this off? The materials i have are my smartphone and an old car display monitor(just the monitor).  Any ideas?? 

Question by kenrickrco 2 years ago  |  last reply 2 years ago


Magnifier lamp base broken - how to make replacement?

I have one of those handy articulated-arm magnifier lamps but the TOTALLY CHEAP INADEQUATE CRAPPY clamp base not only broke but gouged my desk as it did. I have beginner woodworking skills and tools; can someone make an Instructable on building a better replacement? The lamp and the arms and everything are fine, it was just the cheap plastic clamp that broke.

Topic by threeoutside 2 years ago  |  last reply 2 years ago


what can I do with a big sheet of fresnel magnifier plexiglass?

My neighbor through out his old rear-projection television, and I salvaged the pane of  plexiglass with ridges in concentric circles used to magnify? or focus? the image.  I am sure I could figure out how to solar heat something with it.. but I thought you all would like to know that I am open to suggestions.

Question by skippyconsuelo 8 years ago  |  last reply 8 years ago


Bacteria-like projections when shining a laser through a magnifying glass.?

          I was recently shining my new green laser pointer through a magnifying glass, and the beam went through the little circle near the bottom of the lens that magnifies things more than the rest of the lens. The laser dot got very much larger, and there were odd little dark circles surrounded by larger, transparent circles. I also noticed the same thing, but with longer, oval-like projections instead of circles. What are these projections of? I'm guessing dirt, hair, bacteria, etc. Can anyone tell me? I want to know because it's a pretty cool effect and it would be cool to know if I'm looking at bacteria or something like that.

Question by ALogan97 7 years ago  |  last reply 7 years ago


how hot is a laser cutter beam? Answered

How hot is a laser cutter beam? I was thinking of using a magnifying glass and the sun to burn into metal or stone.  And when I say magnifying glass I meant using a giant frens lense Overall my goal is to carve into metal, stone or brick.

Question by Houdinipeter 8 years ago  |  last reply 7 years ago



Could I build a giant magnifying glass? (And maybe incorporate it into a steam engine?)

Optics are fun, and so following that logic, scaled up optics should be even more fun. And so this leads us to: How do I build a giant magnifying glass?The sun has a lot of power, and I want to harness that energy, and try out a few things, including the interesting prospect of using it to power a steam engine. (Heat up something, run water over it, and run the steam through a turbine).Several methods have come to mind, including: acrylic, freezing some water in specially-shaped bowls, and sandwiching water (which has a slightly higher refractive index than ice) between two parabolic pieces of plastic. I'm personally concentrating on the last one, as it would be more permanent than the ice.Just thought this up: freezing a lens, and then coating it with something immediately so that it will stay once it melts. What do we have that is clear, dries quickly, and readily available?Does anybody else have experience with this?UPDATE: Some relevant links...An ideal result.Parabolic mirrors are another possibility, but I'm still more interested in a lens.Where a lot of this sprang from.Indices of refraction. Is it Indices or Indexes?Hmmm....

Topic by carbon 12 years ago  |  last reply 3 years ago


DIY Stereoscopic Eyepiece?

Made a night vision spotting scope from a rather large cascade tube and I'm wishing for a way to get the same image in both eyes like binoculars. Is this possible to do with DIY parts and off the shelf optics? The phosphor screen (what needs to be magnified into the eye) is 34mm in dia and has a clear picture without an eyepiece, but an eyepiece will magnify it for easier usage. I was wondering if anyone out there had a solution for something like this. I think I can get access to surplus prisms and mirrors if necessary, but I have no idea what I would need.

Question by MattGyver92 5 years ago  |  last reply 5 years ago


What can I do with an old zoom lens??

Panasonic TV zoom lens J6X12 12.5-75mm 1:1.8 . It can be used as a variable magnifier, and would need a stand and lamp, but I'm looking for something more 'Instructable'.

Question by dziadek 6 years ago  |  last reply 6 years ago


My fifth-grade daughter is asking for help in putting together a "Detective's Kit".....any input? Answered

Ideally, this would be a carry-around detective's kit, with a pen, a notebook, a magnifying glass etc. etc. Photo-related ideas would be superb!!

Question by chipper35 7 years ago  |  last reply 6 years ago


What's the closest thing to these folding binoculars? Answered

 I was watching Fringe, and a guy had this cool pair of binoculars that folded almost flat. It's obviously a prop, but what's the closest thing to these rectangular, flat-folding binoculars?

Question by noahh 9 years ago  |  last reply 7 years ago


Making a bug collectors helm.

Does anyone know of some instructions to make a leather type cap with magnification glass or strange levers protruding out of it? I'd like to make something "weird-scientist"-like for my entomologist friend, Thanks! edited to spell "bug guy" correctly

Topic by Oakherder 11 years ago  |  last reply 11 years ago


Is the circuit ok? also please explain "What the circuit is doing"?

The circuit shown is supposed to produce AC where v1 is a 9v battery, c1,c2,c3,c4 are capacitors and t1 is  a transistor (BD140), R1 is a resistance AC squarewave of 140-150 kHz is required .........sorry for poor image quality please use "magnifier " if needed.....Thanx in advnce!

Question by jatinbatra 6 years ago  |  last reply 6 years ago


Has anyone ever made a room furnace with a light bulb? I've heard of using light bulbs contained in a metal box. Answered

Any ideas. This principle could work along the same lines as an oil hot water heater pumped through a radiator (you know those 300 lb.+ radiators from older houses), but using the bulb in place of the hot water.. If it was portable, that would be great. I could make a nice cover or wood cabinet around it myself. What would be a good metal to line it with that could magnify the heat of a light bulb. Obviously, this would need to be a safe product. Getting a little warm on the outside is not a problem in our home. I mostly just need some idea as to what metal to use to magnify the heat of the bulb. Thank you in advance for any help or ideas.

Question by Lori216 8 years ago  |  last reply 8 years ago


solar panel inside the house

Hi i was watching http://www.youtube.com/watch?v=SBWi3NtND68   ( using a bottle filled with water to reflect light inside the house ) may be someone can can use mirrors or magnifier to run a solar panel inside the house and do more than just light . ( heating water , spread lights to other rooms ,cool the house , etc ... ) thanks Michael

Topic by pacbe11 5 years ago  |  last reply 5 years ago


Motion sensor distance? Answered

What is a motion sensor detection range? (I need 500'+) aware that it is less so my question becomes how or can I extend its minimum to the range I need or farther which would be best for my need(s) I was thinking adding a magnifying lens? is that plausible? / is there other thechnology that could be used to detect an animal in your yard or path while hiking in dangerous trails

Question by colois 7 years ago  |  last reply 7 years ago


Turn your monitor into a lamp. (no modding)

Here I have made a PPT presentation for making lamps, moodlights or whatever out of your monitors. I got the idea by seeing that holding a magnifying glass in front of my monitor gave a clean but tiny image on my wall, but the rest was bright and blurry like a moodlight. The file is given below. Save it, open it and use it.

Topic by Derin 9 years ago  |  last reply 6 years ago


Split Tesla coils anyone?!

I am collecting data in the form of old pics, patents, newpaper and magazine articles as well as just doing things.Tesla coils are fun but is anyone experimenting with the original "multiplying transformer" that Tesla created?And before you say, sure I have a Tesla coil......I mean:Large diameter primary coil with one part of the secondary in very close proximity while the other half of the secondary is located at the center ;)

Topic by Downunder35m 8 months ago  |  last reply 7 months ago


What other ways are there to store books & magazines? Answered

Looking for a way to make books compact and paperless does anybody know of any other ways to store books & magazines that are paperless and not electronic? The only systems that I know of are micro image sheets, micro-opaque images, microfilm, microfiche, microprints microcards and Stereoscopic viewers but they need magnified readers and are not all that practical for anything other then long term preservation.

Question by JoyfullJuneBug 6 years ago  |  last reply 6 years ago


Fabricating a 1"-2" transparent dome?

I need to create a small, transparent dome (out of some sort of plastic or resin) that will be able to be glued to a flat surface. What materials are out there to make something like this (that I will be able to do as smoothly and evenly as possible)? It will need to be able to magnify an image underneath it. Sorry if I don't have enough details on what I am trying to do, I have never made something like this before so any help will be very much appreciated. Thank you for your time.

Question by mappum 8 years ago  |  last reply 8 years ago


Swevil part for swing arm lamp

I need help in finding a replacement part for a swing arm magnifying lamp. I have search far and wide online but could not find any. I have also tried the company that I had purchase from (2 Years ago) they do not carry replacement parts. The lamp is a Alvin lamp desk clamp, the lamp is in excellent and working condition. The only problem is the swevil part that connects the lamp head to the the swing arm. ( see pics)  Any alternative idea or sudsititude would be helpful.  Thanks

Topic by RamonC2 3 years ago  |  last reply 3 years ago


Mystery of the CO2 Balloons!

Filled some balloons w  co2  from dry ice in a soda bottle.   As expected, they act like a lens, a magnifier of sound. No mystery there. Just as a dense glass refracts light, the denser gas refracts sound. The mystery is why balloons filled with co2  leak down faster than identical balloons filled by mouth. Yes, there is some co2 in my exhaled breath, but it is mostly  n2,  and  o2.  I would hav expected the n2 and o2 to leak out more quickly, being smaller molecules. So whatzup wit dat?

Topic by Toga_Dan 4 years ago  |  last reply 4 years ago


New Site Search Doesn't Work on Chrome on Mac

I'm running Chrome 27.0.1453.47 beta on a MacBook Pro running OS 10.8.3 and I can type in the new search box on the main homepage but it doesn't search when I hit return or when I click on the magnifying glass. It worked in Firefox though.  I've disabled adblock to see if that was the cause of the issue and that didn't help either.  Anyone else have this issue?  I've had a lot of issues with Chrome on the Mac with this site, including when editing instructables.  I couldn't even submit this bug report on Chrome because the "Preview Topic" button would not do anything when clicked.

Topic by johnfixesstuff 6 years ago  |  last reply 6 years ago


​Make an optic close focus.

I want to be able to put my night vision monocular in front of my 2x scope on my airsoft.I need a combination of lenses to put between my scope and the NV to let the scope focus at a couple of inches (instead of 30 feet), and reduce magnification because otherwise I’d just be looking at a tiny part of the phosphor screen heavily magnified.I know it’s possible because a commercial unit is available, I just don’t know if it’s feasible for a guy like me (doesn't have a degree in optics) to build (I'm thinking no, but I figured I'd ask).Thanks for any help you can offer.

Topic by instrucables360 11 months ago  |  last reply 11 months ago


How does light react to one way glass?

I hope this is the right forum for my question. Earlier today I was watching a show on Netflix (Mythbusters) and they were using some one way glass. I was just wondering how light behaves towards this. For example if I used some one way glass in the side of a computer would I be able to see the light from LED's? The LED's would reflect on the mirrored side, wouldn't they? So would the light be magnified when I look through the clear side? I hope what I was trying to say was understandable.

Topic by Triblade101 9 years ago  |  last reply 9 years ago


I'm getting seriously frustrated with this DIY iPod projector.

I am trying to make a video projector for my iPod touch using a cardboard box, mirror and a magnifying glass lens. When I put my iPod over the mirror, it projects onto the wall but I can JUST vaguely see the picture. It's not clear at all. What do you guys suggest? Smaller mirror? Moving something closer or farther to the lens? Smaller lens? It's really starting to p*ss me off. I want to know what some of you might recommend. Below are the blueprints I roughly sketched up on MSPaint.

Topic by Zachintosh 7 years ago  |  last reply 7 years ago


Really easy multi use desktop machine

I need a multi purpose machine that can fit in a one cubic foot area. I need it to do most or all of the following; 1.) Have a "3rd and 4th hand" 2.) Fit in a 1'x1' space 3.) Light 4.) A controlable .1-24 volts DC output 5.) Small Storage 6.) Large magnifier on a flexible mount. 7.) Built in ruler 8.) Wire reel holder Im Sorry for being so picky, but I need to somehow cram all of that in to a small space. Pics or drawing would be nice. But comments and ideas would be better. P.S. Pic isn't related to machine

Topic by ry25920 11 years ago  |  last reply 10 years ago


How do I enlarge an image that's been projected onto a screen? Answered

Hey, I made this device that shines light through an LCD screen to project the image onto a window, which then reflects back to me, forming a sort of heads-up display. The LCD screen is about the size of a credit card, and I can't move it any further than ~40cm from the window. Another restriction is, any lens I use can't make the device any more than another 5cm thicker. (that includes distance between the lens and the screen) Is it possible to make the image appear any larger using any lenses? I've tried those plastic magnifying sheets and a lens from a projector tv, but they don't seem to make much difference. Thanks

Question by .Unknown. 6 years ago  |  last reply 6 years ago


digital soldering glasses... i need inSIGHT.

I have a idea, to create digital soldering glasses but don't have any inclinations on what direction to go or what mats. to use. I have entertained microscope lenses, ben franklin-esk, lenses (not digital),surveillance pens( not sure how to zoom them),phone cameras( no idea how they zoom either (not in a diy fasion)) a small screen to a hacked digital camera scope, I am a experienced circuit developer with limited understanding of optics. so here is the question if not "think tank" disclosure. if you were to make "zoom glasses" what you use and why.  other low tech to turn digital to be jewelry quality scopes. magnifying lenses for eyeglass repair, etc.     thanks for your time and consideration.

Topic by CD_tatro 4 years ago  |  last reply 4 years ago


LED to laser beam?

I have just started the optics section of my physics class and I was amazed to learn that one can use a simple magnifying glass to form a beam from an LED.  Could this be used with a high power LED such as a 100 watt one, and then a beam expander (backwards to compress it) to form a laser beam of sorts.  Obviously it wouldn't have a common frequency, but could one theoretically make a very high power, burning beam with this quite easily. I know from experience that holding your finger in front of a mere 10w led can get quite hot, so couldn't using a 100 watt led yield some awesome ant killing hotdog frying results?  If not, how many beam combiners would you need to make it work

Question by seedorfj 4 years ago  |  last reply 4 years ago


G33 Assault Rifle

This is an old gun I was about to take apart to make my M4, but I thought maybe someone wanted to make this. If I get enough positive feedback and enough people ask me to make instructions, I will. It features: Non-removable 10+ shot magazine New-Style Floating trigger mechanism/string (ask for details) foward handle(optional) stock (crap, but could always be modded) Specs: Range 60 feet Accuracy: Up to 25 feet Reliability: Medium/High (never jams) Modifiable: Yes If I do eventually post this gun, I will also post the other interchangeable parts (actual magnifying scope, longer barrel, telescoping stock) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ EDIT: I destroyed the gun but it is probably easy to make from the pictures if you want, and if you still need any help, you can ask me.

Topic by flames10391 11 years ago  |  last reply 9 years ago


The search bar does not work!

From the explore page (https://www.instructables.com/tag/type-id/) I tried to use the search bubble at the top right. I typed USB charger for example, and it takes me to a search page (https://www.instructables.com/tag/type-id/?sort=none&q;=usb+charger) but that page only has a grey bar with the words "Let's make 'USB charger' with an option to choose different categories, e.g. everything, technology, etc... That page doesn't show any search results. It appears to be the main search page, because it has a little magnifying glass button after the text, but when I click it, it just returns me back to the "Explore" page cited above. I can't figure out how to search the site.  Also I tried to attach a screenshot but neither the new uploader nor the "old" uploader are responding to my clicks.

Topic by waslater 5 years ago  |  last reply 5 years ago


Craters on home made PCB tracks ??? How to avoid ??? Answered

Hi ... I would like to ask how do you do your own PCB - so that you have nice/solid tracks ??? I did mine by using laser printer - iron - Ferric Chloride (FeCI3). When I've finished the board ... I've took it under 30x magnifying loupe and saw a lot of craters in those copper tracks - which sometimes lead to NO CONNECTION between the copper. Or I made this = I saw a track that did transfer signal (I've checked it for continuity) but it seems to be very thin. So I've decided to put solder over it to make it solid.  But to my surprise ... as soon as I put solder over the "weak spot" ... the connection get lost. I had to make a "bridge" by using a small wire. Could you explain me, why this happened and how to make the track NICE and SOLID ??? Thank you in advance. Zholy

Question by zholy 8 years ago  |  last reply 8 years ago


I have a LED i cant light, no matter what. It has a little black dot in it. What kind of LED is that? Answered

Appearance: It is a common 5mm, transparent case, LED, being different from all others only by having this very tiny square dot over its anvil, kind of covering the reflexive cavity where the semiconductor (i don't know which) gets lit up. Other: I could not light this LED whit voltages from 1.5V to 3.5V. =O It came out of a photocopying machine, and was paired with an IR LED in some kind of emitter-receiver set. Other components of this set were a pair of smd resistors and a smd trim pot. Would it be and IR receiver or photodiode? UPDATE: I've took some photos of the mysterious LED. BUT, as no macro-enabled camera was available, i had to do the ghetto-way of photography. Soo: i have photos of it compared to the IR LED, and some photos of both anvils (IR, unknown), at 200x magnifying. Here they are. BTW, i hadn't tested the suggested circuits yet. =(

Question by vinacarv 9 years ago  |  last reply 6 years ago


How do I arrange optics to make a decent periscope? Answered

Ever since I watched the first season of Stargate SG1, I've wanted one of those sweet little tactical periscopes that Jack o'Neill uses to look around corners to avoid Jaffa. The image is here, but it's just a prop! As far as I can tell, they either don't exist or are absurdly expensive or are just really hard to find. So I want to make one. I know some basic optics from working in a university laser lab, but we don't usually use lenses and such. I have played with simple two-lens telescopes and know that the ratio of the focal lengths is the amount by which an image is magnified. The corner would need to have a tiny prism in it. The problem I'm having is this: If I use tiny lenses, and a longish (~30cm) tube, the viewable area is ridiculously small. I would love to find a way to enlarge the viewable area I see in the eyepiece. Does anyone here know how this is done? At the very least I would like to know how to position the optics so that it seems like my eye is at the far end of the periscope. Maybe I could use a peephole lens to get a wider field of view too.

Question by laserjocky 6 years ago  |  last reply 6 years ago


VGA Video goggles/glasses on the cheap. i know its possible.

Ok,        i have been looking over the internet for a while now trying to get some sweet video goggles or a video headset like ipod video goggles but for my computer screen. the best i can come up with are in the range of $299.99 to $1K+. i was looking at the lady gaga video glasses tutorial and thought that i could hack the input on those tiny screens and slap a vga cable on it, glue it up with a set of gem magnifier glasses and be watching a video in no time. this is not easy, i don't know how to splice up the wires and connect them up, i don't know how bad this would be for your eyes and most importantly i don't know how to make my computer see this new VGA cable as a monitor. Anybody with the brains feel like mocking this up? i think it would be amazing if we could get this in. Id even be willing to guess a fast track to getting it working right would be with something like the usb desktop extender seen in the link below. http://www.walmart.com/ip/StarTech.com-USB2VGAE2-USB-VGA-External-Monitor-Video-Adapter/13215071?wmlspartner=GPA&sourceid;=44444444440261298289 Thanks!

Topic by Exhumer 8 years ago  |  last reply 8 years ago


Can I use this CRT as a monitor? Answered

I saw this hack on the MAKE blog yesterday, and it reminded me of a project I wanted to try a few years ago: a computer monitor like the one in the  movie Brazil (pictured below). This device appears to be a small CRT screen behind a large Fresnel lens. The lens is easy enough to find in the form of a reading-magnifier, but it was the screen that puzzled me. I couldn't figure out what I could use that I could hook up to a computer. I thought about hacking digital picture frames, but they wouldn't have the cool curved look of an exposed CRT. When the post on MAKE came out, I thought that maybe the screen he used from a Coleman Lantern/TV (which are pretty easy to find on eBay) would work, but I'm not sure. So my questions are these: 1.Could I use this as a computer monitor using similar methods as in the blog post or a different way? 2.Would it be a problem that the TV is black and white? 3.If it's possible, is it likely that an electronics amateur like me could do it? I have experience in circuit bending and blinking LEDs with Arduinos, but little else. This is the deciding factor for me if it is truly possible, I don't want to take on something well out of my skill range. I realize that even if I did succeed, it wouldn't be very useful, but I'm still interested. Is it possible? Thanks, Noah

Question by noahh 7 years ago  |  last reply 7 years ago


Making a solar compass

I realized a while ago that if you put something on a rotating  mount inclined to your latitude and adjust up or down for the inclination of the sun (up or down from its equinox path) for that day of the year, you have a compass. For instance, today the sun is just over 23 degrees off its equatorial path. So you have a stick pointing straight out from the mount at a right angle and you just angle it down by 23 and a half degrees. So you tighten it in place at that angle.   Next you combine rotating the entire thing on the ground (keeping your latitude angle correct) and you rotate the mount itself until the stick points straight at the sun.  At this point, no matter where you are on earth, your mount is inclined in line with north/south.  I have 2 little test compasses to try this but it was fully cloudy all day  so I cannot try it out. One uses a Fresnel lens and the other uses a magnifying glass to line up the sun. Just wondering if anyone else has done something like this?  Solar compasses did exist and I had a look today.  They do not look like my thing at all.  They look really complicated! I will post a year of inclination data shortly. Thanks Brian

Topic by gaiatechnician 8 years ago  |  last reply 8 years ago


Reuse Fingerprint Scanner from Lenovo W510 Laptop

I have a Fingerprint reader from a Lenovo W510.  The model number of the circuit board is 48.4CU13.011, which seems to be shared by both my Lenovo and another Fujitsu laptop.  The fingerprint reader is a spare part, and I thought it could be cool if I could hook it up to a PC by USB.  When connected to the laptop in question, it shows up as a USB device: UPEK Touchstrip TCRD4C - USB ID 147e:2016 The chip is connected by an 8 pin ribbon cable to a larger ribbon cable which also connects to the touchpad.  Looking at the board under a magnifying glass, it looks like there may only be 4 of 8 pins connected to the ribbon cable connector.  The chip on the circuit board appears to be a TCD50 fingerprint reader controller, made by UPEK or possibly Authentec (did Authentic take over UPEK?) I was hoping someone might have some experience wiring this board up to USB, or could point me in the right direction to figure out what pins go where.  I looked for datasheets, schematics, and pinouts without success, but I don't have much experience searching for this type of stuff.  I'm pretty handy with a soldering iron, so I feel confident that if I knew which pins went where, I could get a cable hooked up. 

Topic by Jozer99 5 years ago  |  last reply 3 years ago


curtis air compressor?

I have a 1925 Curtis Air Compressor and we are rebuilding it to be a working show piece. The General Electric Motor is  running the Curtis Compressor, and we need the manual of the motor/compressor/tank or all of the Information about it that we can get ahold of so it can be rebuilt  to the exact color, wiring , ect, so we can put it back to its' original  origin. Here is the information from the plate that was barely  readable. We had to remove to plate and put it under a lighted magnifying glass and this is what we managed to get from the plate. >> >> GENERAL ELECTRIC MOTOR  1.50 - HP >> GENERAL                                 ELECTRIC >> REPULSION - INDUCTION - MOTOR >> MODEL: 5SCR224 C 53     FRAME - 224 TYPE - SCR >> CYG-60   SINGLE PHASE                     SPEED EJ 1760 >> VOLTS 110@15.0 AMPS       VOLTS 220 @ 7.5 AMPS >> SERVICE FACTOR >> 1.50 HP CONTINOUS                    LN 5890 >> THE CURTIS COMPRESSOR   Size:   3X3.50 No:   LB428A PAT. AUG. 31-1915   NOV. 30-1915  NOV. 14-1916 NOV. 8-1921    KEEP BASE FILLED BETWEEN HIGH AND LOW LEVEL OF OIL WITH GOOD AUTOMOBILE CYLINDER OIL. CLEAN OUT BASE ONCE A YEAR. RUN AT LEAST 250 REV: PER MIN. MANUFACTURED BY CURTIS PNEUMATIC MACHINERY COMPANY ST. LOUIS USA    Q-82  Any thing about this compressor would be helpful. you can e-mail me at:  mar5jer@msn.com

Question by eljero 6 years ago  |  last reply 6 years ago