New life for Radio Shack 22-168A DMM with Banggood Serial to USB Adaptor - Electronic Project. HF Arduino Vna (english version) – Projets radio. (722) Pinterest. (718) Pinterest. (718) Pinterest. Audio: Crystal cMoy Freeform Headphone Amp. If you have not been following the previous posts regarding this unusual headphone amplifier/Pre amp project, here they are...
Although admitably not the best quality, I decided to use these particular jacks sockets from an old sound blaster live sound card, due to the fact I could seal them properly to stop an ingress of resin. (The below picture has been Mirrored) Index. Crystal Sets to Sideband. Revision 10, July 2006 A Guide to Building an Amateur Radio Station By Frank W.
Harris, KØIYE Copyright © Frank W. Harris, 2002, 2004, 2006. Radio Hobbyist's Designbook. Radio Hobbyist’s Designbook or RHdb (for short) was designed to guide you into design of electronics apparatus that relates to radio.
It assumes you know something about electronics but you can skip Chapters which cover familiar subjects. Mathematics needed in design is down to simple algebra and trigonometry. Topics cover the frequency spectrum of DC through VHF. You must supply the brainpower. Voltage Drop Calculator. This is a calculator for the estimation of the voltage drop of an electrical circuit based on the wire size, distance, and anticipated load current.
Please note this calculator assume the circuit is operate in a normal condition—room temperature with normal frequency. The actual voltage drop can vary depend on the condition of the wire, the conduit being used, the temperature, the connector, the frequency etc. Member Projects. (1) Dr.
White, ... Dr. White has a comprehensive set of notes for 5 different courses ... at least one of these should be interesting, understandable and useful for everyone here. Note especially the EE322 course, which is totally based on the NC40 ... check it out, if new for you. . (2) Dr. Matlab home version is a good deal at $99 but, as most engineering software, a similar freeware versions exists. Capacitor uF - nF - pF Conversion Chart. Capacitors and Resistors for Tube Electronics - JustRadios Capacitor uF - nF - pF Conversion Chart When reading schematics, repairing radios and buying capacitors, you often must convert between uF, nF and pF.
Paper and electrolytic capacitors are usually expressed in terms of uF (microfarads). Short forms for micro farad includeuF, mfd, MFD, MF and UF. Capacitor types. Some different capacitors for electronic equipment Capacitors, together with resistors, and inductors, belong to the group of "passive components" used in electronic equipment.
Although, in absolute figures, the most common capacitors are integrated capacitors (e.g. in DRAMs or flash memory structures), this article is concentrated on the various styles of capacitors as discrete components. Date. PIN3 No connection ( S230 Mic Plug.)
Heathkit- SB-100 / SB-104 mic Connection Heathkit- HW-12 / HW-22 mic Connection Heathkit- HW-17 mic Connection HM-10 DUAL, GM-4,GM-5,GMV. Maker Share. Pro Micro & Fio V3 Hookup Guide. Build a Raspberry Pi Scanner that Tracks the Devices Connected to Your Local Network. Photo by Hep Svadja We’re going to make use of a Raspberry Pi to build a network scanner to keep track of the hosts connecting to our local network.
It’s actually pretty easy to do. And as we’re going to make use of ARP scans to do it, which are moderately stealthy unless you heavily hammer the network, it would be easy to make something that is pretty much invisible to most people. If you did that, you’d end up with a Pi that could sit quietly in a corner and monitor your home or office wireless network, squirreling away information about what hosts are connecting to without anyone taking much notice of it at all. However, we’re not those sort of people. Buying Hardware Most of the hardware for this project is fairly easy to get a hold of and, apart from the giant seven-segment displays and the controller boards for them, you may well have most (or even all) of the bits and pieces you need kicking around your workshop already.
It can also be put together with minimal soldering. Untitled. By Chris Warren The concept is simple: replace a few of the keys on a USB keypad with heavy duty footswitches.
Then use the select function in Max to direct these switches to control your patch. Disclaimer: This tutorial assumes basic familiarity with electronics and the use of soldering tools. Cycling ’74 assumes no responsibility for damages to your keypad or any other device in following this tutorial. How to get access to over 25,000 free electronic components. Selection is easy and hassle-free Consider the following: you are a research and development engineer tasked with designing a new optical-communications-related product.
Your responsibilities include not only determining that exact components required, but also selecting a supplier for those components. The challenge you must face is ensuring the selected components are the right components, especially considering that nearly all suppliers sell in bulk. Fortunately, Electronic Products' Sample Center provides access to over 25,000 samples from one consolidated, easy-to-search location ─ the majority of which are free! The Sample Center inventory includes components from leading organizations such as Texas Instruments, Maxim Integrated, Honeywell, Littelfuse, HARTING, Harwin, and more. Articles - Electronics-Lab. Circuit-Zone.com - Electronic Projects, Electronic Schematics, DIY Electronics. Whats your Work-Bench/lab look like? Post some pictures of your Lab.
Built-it-myself tools/machines - show us what you've done - Page 15. Built this cable unwinder to handle 1000' spool of 12-2 for wiring the garage. Unwinding in a controlled fashion keeps the cable from becoming full of curley-Q's. Wanted something a bit more "cool" than the broomstick through the center, supported by two chairs/blocks/midgits/whatever. Can't take credit for the idea, it's how large cable spools are unwound (being supported on wheels). Those cheapy rubber tire/wheel assemblies were on sale at HF for 3.50ish ea, took the tires off as all I wanted was the rims/bearing hub. Those were the only parts bought, everything else was stuff laying around. 1/2" copper pipe was the perfect size for axles. I added the PVC roller to help remove the curl from the wire, as you pull wire, it passes under the roller slightly bending wire in the opposite direction it was coiled.
Invested probably 1.5 hr start to finish and now wire pays out nice and straight! Switching Power Supply. My magnetometer sensor is going to run off a 12 volt lead acid battery charged with a solar panel. The main power needed is 5 V DC so a regulator to convert the battery voltage to 5 V DC is needed. I will use a switching regulator to keep the power needs low. Texas Instruments has a switching power supply design application, WEBENCH, on their web site that lets you set the requirements and then provides several designs that meet those requirements.
Of course they use TI semiconductors. Power Supply Schematic. Jameco Electronics - Electronic Components Distributor. PCB "Fab-In-A-Box" ... The 8min circuit board system. This section will quickly touch on the basics of what our system can do. When done with this page, just mouse-over the "START HERE" button to select more information about each of these subjects. QUICK NOTE ABOUT OUR SITE! Our left-side main menu is structured with drop-down selections. Whatever button you select will stay UNDERLINED. If you hover your mouse over that menu item the drop-down box will further tell you which page you're on in that particular grouping. Active Antenna. Documenting the History of Radio TV and FM broadcasting. The Sproutie MK II HF Regen Receiver. Note – If you have read this article before and are checking back in, it’s a good idea to clear your cache, to ensure that you are viewing the very latest version of this post.
I do add material and make corrections from time to time. It’s been about a year since I finished building The Sproutie, and it’s been a good year. Of all my scratch-built projects, it has been the most satisfying to own. It works well, looks pretty good and also, there is always the lure of possible of tweaks and improvements. Electronics Projects - Home. Solomon Coil Winder. This picture shows the coil winder in operation. Although it can operated without hand guidance, I have found the manual guidance gives more control. The winder consists of two primary parts -- the winder itself and a coil spindle.
The winder is motorized using a microwave turntable motor. I used a Sanyo 3 rpm motor used for Sharp microwave ovens, models R-4075, 4080, 4180W/R/Y/P, 4275, and 4230. This speed motor is just right for me. Operation can be done without hand guidance as below. The white AC line cord is connected to the microwave motor through a footswitch (above) to turn it on or off in an instant. The motor mounting is very simple, and the gear drive is self-contained. The following shows the spindle chiseled with a square hole to interface with the motor. Build Your Own Instant Emergency Internet Kill Switch. Advertisement Every once in a while, we all feel like we just want to shut it all down. Apollo-NG - picoReflow. Electronics DIY - Quality Electronic Kits, Electronic Projects, Electronic Schematics, FM Transmitters, TV Transmitters, Stereo Transmitters.
Water-level Indicator. Metalworking and Electronics. AideTek: Surface Mount resistor kit SMD parts Orgnizer Surface mount capacitor kit. Components - What's the best way to store and categorise resistors/capacitors/ICs/etc? Electronics Workbench. Small Storage I decided to get some small storage bags for storing resistors. Buy ClampTite Tools and Wires. Raspberry Pi: A Raspberry Pi-based Digital Picture Frame. About 10 years ago I got the idea to build a digital picture frame based on an old 3Com Audrey (anyone remember those?)
That I bought off of eBay. I actually did build it, and it ran for a good while. AutoSpeed - The DIY Seismometer. Seismometers measure earth vibrations. You’ve probably seen them on TV after an earthquake – the seismographic record shows the magnitude of the ‘quake and, through the use of three or more seismographs, the epicentre of the ‘quake can be established. The seismometer presented here won’t be finding a place in too many geological laboratories, but it’s cheap and easy to construct, sensitive enough that on a wooden floor it can literally detect a cat walking past. Equipped with a remote probe, it can also be used as a vibration detector of the sort that’s used to assess whether machine bearings are running smoothly. In short it’s a fun, interesting project that costs nearly nothing to make. The Components To make the seismometer you’ll need a discarded (but still working) cassette deck that has VU meters.
If you want to make a fancy new faceplate, you’ll also need your trusty PC, a printer and a scanner. $10 DIY Alarm System That Calls Your Cellphone. Turn your $60 router into a $600 router. Poor man digital read out. A mouse and an old pc asPoor Man's Digital Read Out2 axis PMDRO Requirements: DOS with PC A serial 9 pins sub-D mouse connected to com1 A mouse driver loaded on com1 The program encode5.zipThink this is the pascal source mouseencodesource.zip.
Grant Trebbin: Homemade Surface Mount Vacuum Pick-Up Tool. Untitled. Homebrew CNC Engraver. Making Your Own Solder Paste Stencils. REUSE YOUR OLD LAPTOP BATTERY TO MAKE A POWER BANK. Arduino. ARDUINO SOLAR CHARGE CONTROLLER ( Version 2.0) RS-232 Laser Transceiver. Rusk County Amateur Radio Club: Op Tools. Joule thief. Emperor of Test Equipment - Home. Xantrex C35/C40/C60 Display. DIY Air Quality Sensing from HabitatMap and Sonoma Tech. Top 40 Arduino Projects of the Web. Electronics on Pinterest. Projects - PCB Heaven. High-res Cap meter by RomanBlack.
Dave's Homemade Radios - Nick's Homemade Radios. Hossmachine Homepage. Arduino Solar Tracker with ServoMotor. Spark Transmitter Circuit. DIY thermoelectric device charges hiker's smartphone. Unusual Copper Oxide Thermopile - Make: Electronics on Pinterest. Raspberry Pi gets an open source educational manual. Electronic lab on Pinterest. My Workbench by Twylo, via Flickr. Pin by Edward Van natta on Electric guide. Hacker(Space) Ideas on Pinterest. Arduino, Raspberry Pi, electronics on Pinterest. IBM 5100 Portable Computer. Multi Display on Pinterest. Duke Electrical and Computer Engineering. Equation Formula and Limitation of Ohm’s Law. Specialdealsandleftovers. Tools and Information for Electricians.
DIY Wood Stove Fan for under $50. Home made tools? Lets see them! All About Circuits : Free Electric Circuits & Electronics Textbooks. POPULAR ELECTRONICS: Consumer Electronics and Experimenter magazine. Gerry's Laboratory. Greenproductsolutionpr. Arduino Uno Box, Modular by khiebert. Poor man digital read out. Solder paste controller from Dead_Bug_Prototypes on Tindie. Homemade Circuit Designs Just for You. Ultrasonic anemometer (Ultrasonic wind sensor) RTL-SDR. AutoSpeed - DIY Digital Anemometer. Documenting the History of Radio TV and FM broadcasting. Batteries - Learn. Elektronica Stynus > Projects. Welcome to the Radio and Phono Museum. Phonograph Makers' Pages. Contraptor.