Sunday, September 30, 2012

To use Amplifiers purchased in USA in India you need 110v step down voltage converter. Use of 110v version in India is not recommended as there is miss match in the frequency.



http://www.youtube.com/watch?v=BMVn5BySmoo&hl=en

Friday, September 28, 2012

A basic introduction on constant voltage and constant current modes of the power supply. Second part : www.youtube.com



http://www.youtube.com/watch?v=AsBx52mWzwM&hl=en

Thursday, September 27, 2012

The equipment used for this test Rx : RC305 5.8GHz Tx : 5.8GHz 200mW Camera : Sony 1/3 CCD WDR750 600TVL 12V Adjustable voltage regulator : DPCAV 1-35V SEPIC type Antennas : SPW and CL DVR : FPV JapanDVR The minimum operational voltage for this system hooked up together is aprox. 7V. Please post your comments on this to see if someone is getting different results. Thanks for watching



http://www.youtube.com/watch?v=ArV0mssPJ6M&hl=en

Wednesday, September 26, 2012

In this video I show you how to build a 5V USB solar powered charger. Let me know if you have any questions! Item list 5V regulator LM7805: $0.50 9 Volt, 3.3 Watt solar panel: $15.00 AAA battery enclosure: $1.00 Wire: salvaged Total: $16:00



http://www.youtube.com/watch?v=u_-0hGagEfA&hl=en

Tuesday, September 25, 2012

It's my lucky day because my neighbor is throwing away a microwave! One man's trash is another man's treasure, and with all the parts I can harvest off this abandoned appliance, I feel like I just won the lottery! www.thekingofrandom.com Music by Kevin Macleod (Down Home Rockin) http Project inspired by: MattsAwesomeStuff www.youtube.com WARNING: Do not try this at home. This project is extremely dangerous and should not be attempted without adult supervision and adequate training. Misuse, or careless use, of tools or projects may result in severe electric shock, serious injury, death, and/or permanent damage to equipment and property. Use of this video content is at your own risk. I'm super excited about these salvaged parts, because there are a ton of dangerous projects I can use these for. Like unballasted high voltage electrical arcing, or instantly fatal traveling arcs. How about improvised spot welding, or dangerously exciting metal melting, and even makeshift AC stick welders? I feel like I made out like a bandit on this project, and these salvaged components will lay the foundation for many projects to come.



http://www.youtube.com/watch?v=TVkioe3PJz0&hl=en

Monday, September 24, 2012

In this video you can view the work of a voltage regulable power supply from 20 to 0 V. I used components from an old TV and another electric machines.



http://www.youtube.com/watch?v=3BMoEyRsm5c&hl=en

Sunday, September 23, 2012

An easy way to verify that your scooter's charging system is functional.



http://www.youtube.com/watch?v=xS58b5jZ0ic&hl=en

Saturday, September 22, 2012

микросхема LM317T- стабилизатор



http://www.youtube.com/watch?v=S962gO8qe4E&hl=en

Friday, September 21, 2012

This Amplifier has lots of new parts and upgraded options installed. Including new Power capacitors and Transistors. All electrolytic caps on both audio boards were replaced with Nichicon Muse capacitors. New OPAMP IC's installed. New voltage regulator and signal diodes, Gold plated RCA sockets fitted along with new Speaker binding posts too. All parts were tested for more than 5% variation and any parts that had varied was replaced. We then completely rewired the DC Power and Audio output sections with silver-plated wire. The unit sounds fantastic and should be good for the next 30+ years.



http://www.youtube.com/watch?v=9O4f5SM3BMQ&hl=en

Thursday, September 20, 2012

First test of the amp with the two channels. there are : - this is a AB class push pull with EL34 - i used a shcmitt phase inverter, but between +300V and -150V (not +300 and GND), to get maximum linearity and drive the EL34 correctly. Just before the phase inverter are two OPA OP amp to get some gain ! (at these place there is no reason for me to put a tube, OPA amp are really quiet) - there is one fully insulated digital bus for all board to communicate with each other (pic microcontroller). they can synchronize and the startup is done correctly (heating and then high voltage). Also if something gets wrong, automatic shutdown (polarization failure for instance) - 2 boards for the high voltage +400V (notice the so small capacitor of 200uF, and only 100mV ripple at 40W output). made with IGBT of 1200V to be sure there is no breakdown, and feedback to lower the noise. - one board for +12.6V DC heater for the two phase shifter tubes. - one board for low power +300V and -140V (for the phase shifter) - the EL-34 tubes are with a foot resistor of 1 ohms each, and a card ( AL_POL_01) measures the voltage across the 1 ohm resistor to determine the current and adjust the polarization voltage. - two board for automatic bias tuning ( AL_POL_01): each measures the current on two tubes and tune the bias voltage with DAC to get 30mA on each tube. - one central board allways powered, controls the static relay for the high voltage and the other boards supplies. - one big toroidal ...



http://www.youtube.com/watch?v=PSvjoeHF-tU&hl=en

Tuesday, September 18, 2012

Justin Jee JustinJee.com turned 8 last month. So I guess he is no longer a toddler. We attended the world's largest heli gathering in Muncie IN last week. We are finally trying out FBL (flybarless) systems on Justin's 700N heli. In this video, we are testing BeastX from FreakWare in Germany. Justin's first word after the first flight on the system after Nigel Brown setup the system for him was, "It flies just like a flybar heli." You can read about how he got started RC in "Story of Justin Chi". It is located in "About Me" section of his website or click on the link http Setup: Heli - Align Trex 700N Engine/Muffler - OS 91HZ / Hatori SB20 hatoriusa.com Radio Gear - Hitec http Aurora 9 / Optima 9 Servos - Hitec HS7940TH / HS7915HS (Prototype) Gyro / Stabilization - BeastX MicroBeast www.beastx.com FBL Head - ADK Conversion Rotor Blade - SWE 700DCN FBL / 105mm tail www.swerc.com Battery - ThunderPower http 2s3800mah Regulator - Fromeco Kiwi www.fromeco.org Canopy - MaskPro Upgrade - Lynx http Clutch, Lynx main bearing block Misc - SwitchGlo www.switchglo.com



http://www.youtube.com/watch?v=i18BKC5r7S0&hl=en

Monday, September 17, 2012

1995 Tomos Targa

I'm ready to say I'm down with the 1995 Tomos Targa, it's probably 95% of the way there in terms of tuning the carb and I may upgrade the suspension, but the bulk of the project is complete. -Trail Tech Vector Speedo -Homoet Pipe -21mm dellorto race carb -New reeds and intake -70cc alukit -hi comp head -oil injection removed, pre-mix -hardwired with a voltage regulator



http://www.youtube.com/watch?v=fQ0bN7nqEBQ&hl=en

Sunday, September 16, 2012

Visit www.ez-robot.com to get your EZ-Robot Complete Kit! The age of Personal Robotics is rapidly approaching, don't get left behind! EZ-Robot has made building robots easy, powerful and fun! Canadian founded by DJ Sures, EZ-Robot offers an easy, innovative and powerful platform to build your dream robots. The EZ-B is a robot controller that connects to your computer over Bluetooth. Use the included EZ-Builder Software or EZ-SDK on your computer and control the output of the EZ-B Robot Controller. Add a range of peripherals to your EZ-Robot Project; including Cameras, Joysticks, Distance Sensors, LEDs, Servos, Digital Displays, Motor Controllers, iRobot Roomba, and more. Watch Tutorial Videos to see what EZ-Robot can do! EZ-Robot was founded by Canadian Roboticist DJ Sures, who is the creator of many popular robots. Combining his vast knowledge and experience of robotics, EZ-Robot has been designed as an all-in-one hardware and software solution for robotics. The circuit board contains a powerful voltage regulator, a Bluetooth antenna module, digital I/O, ADC, servo control, serial ports, TellyMate interface, and more! Our robot controller supports the EZ-Builder software interface to control your robot, without even needing to program! Watch the Video Tutorials to see how easy it is to add Camera Vision Tracking, Speech Recognition, Joystick Control and more to your robot without writing any code! For those interested in programming, the .Net EZ-SDK exposes the advanced ...



http://www.youtube.com/watch?v=_QgvHYWw-Zg&hl=en

Saturday, September 15, 2012

Arctic Cooling accelero twin turbo pro unboxing Features: 1. Unmatched cooling performance - 120 Watts 2. Dual ultra quiet 92mm PWM fans with low noise impeller 3. Excellent heat dissipation via 4 heatpipes 4. RAM and voltage regulator cooling 5. Pre-applied MX-2 6. Multi-compatible with high-end VGA cards



http://www.youtube.com/watch?v=o5nmBj1oGaA&hl=en

Friday, September 14, 2012

RaceTech Electric shows you how to install their High Output Stator & Voltage Regulator on a 1987-2007 Kawasaki KLR650. This video details every step of the process to remove your old stator and regulator, and install the new ones. This process is very similar on most Japanese motorcycles, so take a look even if you don't have a KLR650. We hope this video encourages you to try and do your own Stator & Voltage Regulator-Rectifier replacement on your motorcycle. Check out www.racetechelectric.com for more information, and don't hesitate to contact us with questions! The stator is available at: racetechelectric.com For $135 The regulator is available at: racetechelectric.com For $94 www.racetechelectric.com 619-928-9015 contact@racetechelectric.com



http://www.youtube.com/watch?v=8mryvKsOXPE&hl=en

Thursday, September 13, 2012

D FVR한글

Digital-Free Voltage Regulator



http://www.youtube.com/watch?v=pX6EtjWYXfk&hl=en

Wednesday, September 12, 2012

Ford Explorer Repair Manual / Service Info Download Covered Years: All years including 97, 98, 99, 00, 01, 02, and 03 Trim Versions: All versions including Eddie Bauer, Sport, XLT, XL, Limited, Expedition, XLS, XLS Sport, XLT Sport, NBX, Base Model, Value, Choice, Premium, XLT Premium, Trac, Sport Trac, and Adrenalin Our easy to use universal vehicle repair guides makes it easy to find repair steps, owner manual download database, wire color charts, database of DTCs (diagnostic trouble codes), safety procedures, problems troubleshooting data, vehicle equipment sources, manufacturer recall data, automotive specifications, DIY car service community resources, technical service bulletin (TSB) summaries, helpful car repair video, thousands of illustrations and diagrams, vintage auto wiring schematics, brand phone numbers, and many other timesaving ways to help you fix what's wrong with your car. This easy to use software can fix the problem regardless of whether the car has worn out components, has an overheating engine, is making a loud squealing sound, needs a new oxygen sensor, seems sluggish, shakes, does not shift, won't start up, is bumpy, is due for a tuneup, or any other problem you might run into that requires service.



http://www.youtube.com/watch?v=cDRUzdb4-9g&hl=en

Tuesday, September 11, 2012

My first "serious" project (besides playing with lights, as my friend Alan put it) is almost done. This is going to be a configurable remote for my Canon EOS 350D / Digital Rebel XT (and possibly for all the cameras of that series). The shutter is closed when two lines of the 2.5 mm stereo jack are shorted; this is achieved by using the relay. My remote has two modes of operation, chosen through a simple deviator used as a switch: time lapse and bulb. In time lapse mode, it counts down to the specified interval and quickly closes the relay switch to fire the camera's shutter, then starts counting again. In bulb mode, it immediately closes the relay switch and starts counting; when the counter reaches zero, the relay switch is opened (the camera's shutter opens too) and it goes back to idle mode. The interval is defined in seconds and can be any multiple of 5 between 5 and 995 (that's over 16 and half minutes, and it's close to the camera B mode limit of 999 seconds). It is changed through two buttons (UP and DOWN). The third button, ENABLE, starts or stops the counter; I had originally thought about using a deviator switch for it, but I realized that the counter should have been stoppable by software too, therefore a push-button proved most useful for that. In this video, the shutter control is replaced by a green LED as I currently lack a wire long enough for my needs. I will solder it to the connector tomorrow, and test it in the field. Hopefully my camera won't be ...



http://www.youtube.com/watch?v=I2Ncbk7wGo4&hl=en

Monday, September 10, 2012

This is a first attempt at integrating my Stirling engine into my home-built coffee can gasifier cookstove. It's able to cook as usual but with the added benefit of getting power from the engine at the same time. The engine could drive a generator for charging cell phones and batteries, or to power the fan on the stove. I put together a little adjustable voltage regulator circuit and installed it in a tuna can so I can control the output from the generator. The circuit can take 7-32 volts input but puts out a filtered and regulated voltage useful for the fan speed control, a cell phone charger, LED lighting, or whatever. This whole system is quite inexpensive and could be very useful for a remote household. More to come!



http://www.youtube.com/watch?v=eN4pBUu-4mA&hl=en

Sunday, September 9, 2012

Check out Squirrels forum! forums.thetoyz.com I get a ton of questions on how to do things. One of the topics is how to program various ESCs. This video is on how to set the low voltage cut off of the Traxxas mini revo and mini slash ESC; the VXL Velineon. Programming between sport, race, and training is very easy and the low voltage cutoff is even easier.



http://www.youtube.com/watch?v=dwMMSztrhcw&hl=en

Friday, September 7, 2012

Replace Alternator / Stator Without Removing Engine Mod. Visit : www.vn750.com



http://www.youtube.com/watch?v=AN-JEBCnhDI&hl=en

Thursday, September 6, 2012

Deals with the operation of the fuel pressure limiter or regulator. Also explains safety issues in dealing with newer piezoelectric Diesel injection systems. Common rail Diesel fuel injection is now the state of the art in engine injection. The Bosch Piezoelectric (crystal) injector operates using a crystal stack, usually Quartz, that changes size when energized. The piezoelectric effect states that when a crystal such a Quarts is squeezed an electric current is generated. By the same token, when electricity is applied to the crystal is changes shape. This minute change in crystal size is used to trigger a small fuel chamber on and off. In turn, this chamber creates a pressure differential at the top of the injector which make it open and close. See further information here. Presented using advanced software CG animation technology to help you understand. Part of our Diesel and electronic series shown here on this channel. Enjoy...



http://www.youtube.com/watch?v=niYW9pkPCH4&hl=en

Wednesday, September 5, 2012

It is a microcontroller-based project that uses PIC16F690 which is a 20-pin flash-based and an 8-bit CMOS microcontroller with nano-watt technology. The project prototype has analog inputs namely rain sensor and light sensor that are both activated during automatic mode. Push button switches for retrieval and exposure are activated during manual mode. It has also limit switches with shared input to cause the motor to stop after retrieving or exposing hanged clothes and toggle switch input that serves as a selector for manual or automatic mode. Analog signals are receive by the rain and light sensor and are converted to digital signals by the microcontroller during automatic mode while digital signals are receive by the microcontroller during manual mode. The rain sensor will detect rain droplets that will give signal to the microcontroller to retrieve the laundry and expose the laundry back as the rain stops while the light detector will also give the signal to the microcontroller to retrieve the laundry at night and expose the laundry at day. The manual mode will give the option to expose or retrieve the laundry manually. The output comprises with a low power-high torque dc motor which is driven by a motor driver. The motor driver is responsible for the forward and reverse rotation of the motor. The motor needs to be supplied with 12-volts direct current while the microcontroller, the rain sensor, light sensor, limit switches and selector require 5-volts direct current ...



http://www.youtube.com/watch?v=CLoolG0qsz4&hl=en

Tuesday, September 4, 2012

Step by step power supply construction for hobby projects PS 1 www.youtube.com PS 2 www.youtube.com PS 3 www.youtube.com Load Lamp www.youtube.com Hall Sensors www.youtube.com www.bristolwatch.com



http://www.youtube.com/watch?v=JaY8Yk3EZJ0&hl=en

Monday, September 3, 2012

The AVR produced is for the purpose of my FY project. The AVR effectively controls the AC output of a revolving field generator by regulating the exciter current. Incorpated is a pic microcontroller sepic SMPS circuit and optoisolator for feedback purposes. An LCD was also integrated.



http://www.youtube.com/watch?v=YQl2W3XeJl4&hl=en

Sunday, September 2, 2012

This video covers the basics of diodes, bridge rectifiers, and how to build simple unregulated AC to DC power supplies than can handle a few mA up to several Amps. I recommend watching my transformer tutorial first if you are confused about where I am getting the AC voltages from: www.youtube.com This is a followup video on how to make a regulated voltage supply: www.youtube.com Don't forget to subscribe!



http://www.youtube.com/watch?v=cyhzpFqXwdA&hl=en

Saturday, September 1, 2012

DC to DC Converter

A simple circuit for using a single 1.5v battery to power 4.5v / 6v / 7.5v / 9v electronics. Steps up DC voltage. Circuit located at the end of the video.



http://www.youtube.com/watch?v=VWi0b5LQ6Jg&hl=en