Friday, July 26, 2013
Unregulated Power Supply
A basic full wave rectified power supply is shown below. The transformer is chosen according to the desired load. For example, if the load requires 12V at 1amp current, then a 12V, 1 amp rated transformer would do. However, when designing power supplies or most electronic circuits, you should always plan for a worst case scenario. With this in mind, for a load current of 1 amp a wise choice would be a transformer with a secondary current rating of 1.5 amp or even 2 amps. Allowing for a load of 50% higher than the needed value is a good rule of thumb. The primary winding is always matched to the value of the local electricity supply.
An approximate formula for determining the amount of ripple on an unregulated supply is:
The calculated value of ripple is (0.1 * 0.007) / 1000e-6 = 0.7 volts or 700mV. The value of peak-peak ripple measured from the graph is 628mV. Therefor, the equation is a good rule of thumb guide for choosing the correct value for a smoothing capacitor in a power supply.
Battery 9V Voltage Doubler
Audio Line Driver
This preamplifier has a low output impedance, and is designed to drive long cables, allowing you to listen to a remote music source without having to buy expensive screened cables. The very low output impedance of around 16 ohms at 1KHz, makes it possible to use ordinary bell wire, loudspeaker or alarm cable for connection. The preamplifier must be placed near the remote music source, for example a CD player. The cable is then run to a remote location where you want to listen. The output of this preamp has a gain of slightly less than one, so an external amplifier must be used to drive loudspeakers.
Tuesday, March 26, 2013
reference manual and diagram for Tecumseh
I know your book is expected to make it easier for owners to be able to repair the engine itself though is not easy, but at least it can ease the work and identify each component part in it.you can find the owner's manual on this page, do not forget to always be careful if you want to do it yourself.
Tuesday, October 30, 2012
2005 Acura NSX Luxury Sports Service Manual
Honda NSX, Acura NSX or a sports car produced between 1990 and 2005 by Honda Japan. Using a sporty engine, rear wheel drive layout, the Electronic Control petrol powered V6 engine and Variable Valve Timing (VTEC) system. For 2005, Acura NSX has a 2 door and is Acura most expensive models in its class, standard features include 17-inch wheels, a removable aluminum roof panel, HID lamps, remote keyless entry, automatic climate control, a 165-watt Bose stereo with CD changer and leather seating. The design of this car is really sporty, stylish, and very luxurious.
2005 Acura NSX engines are equipped with the 3.2-liter V6 engine makes 290 horsepower and 224 pound-feet of torque. It’s coupled to a close-ratio six-speed manual transmission. A four-speed automatic is also available, but equipping the car as such mandates a smaller 3.0-liter V6 and drops the horsepower rating down to 252. With the six-speed, the NSX can accelerate to 60 mph in about 5 seconds and has a top speed of 175 mph.
download 2005 Acura NSX Luxury Sports Service Manual here
2002 luxurious Volvo C70 Sports Coupe manual guide
from 2002 Volvo C70 comes as luxury car or convertible sports coupe sports car that has two doors that can accommodate four passengers. This car has standard features include 17-inch sedan models of wheels and tires, power sunroof, leather upholstery, trip computer, auto-dimming rearview mirror, stability and traction control system (STC). And convertible models will also feature 17 alloy wheels rays, real wood dash trims overrides the effect of "wood" trim on the tourist package optional for C70 LPT convertible. five-speed manual transmission is standard, and a five-speed automatic with winter mode is optional. Whereas the C70 HPT convertible equipped witha 2.4-liter turbocharged five-cylinder that makes 190 horsepower and 199 lb-ft of torque. This engine is only available with the automatic.
2002 Volvo C70 has standard equipment includes dual-stage front airbags, side-impact airbags, daytime running lights, all disks of antilock brakes and Whiplash Protection System (whips Volvo), which moves the front seats rearward in a collision. The side impact airbags are designed to protect the occupants in the chest, head and upper body. Traction and stability control, and four-wheel ANTILOCK disc brakes are standard.Or you can get the article directly in the URL below:
download 2002 luxurious Volvo C70 Sports Coupe manual guide here
Owners Manual 2011 Volvo C30 comfortable Sport Sedan
The Volvo C30 comes as a luxury sedan car that has two-door hatchback that can accommodate four passengers. This car is available in two trim levels namely T5 and R-Design. For the base models T5 features includes alloy wheels, 17 inches, height-adjustable seats, a trip computer, cruise control, full power accessories, Bluetooth and a CD audio system with eight speakers with an auxiliary audio jack. Whereas models R-Design adds 18-inch wheels, foglights, a sport-tuned suspension, steering ratio faster, outdoor sports trim, leather upholstery, blue face gauges and metallic interior trims.
here is Owners Manual 2011 Volvo C30 comfortable Sport Sedan