Monday, October 4, 2010

2SC5411

TOSHIBA TRANSISTOR SILICON NPN TRIPLE DIFFUSED MESA TYPE

2SC5411

NPN TRIPLE DIFFUSED MESA TYPE (HORIZONTAL DEFLECTION OUTPUT FOR MEDIUM RESOLUTION DISPLAY, COLOR TV. HIGH SPEED SWITCHING APPLICATIONS


High Voltage : VCBO = 1500 V 
Low Saturation Voltage : VCE (sat) = 3 V - max
(High Speed : tf = 0.15 µs (Typ
Collector Metal (Fin) is Fully Covered with Mold Resin

Click here to view datasheet 

2SC5926

Power Transistors  2sc5926 

Silicon NPN triple diffusion planar type

For power amplification
                                                            : Features

 High forward current transfer ratio hFE which has satisfactory linearity.
• Low collector-emitter saturation voltage VCE(sat)
• Allowing supply with the radial taping

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2SC5926 datasheet, 2SC5926 pdf, 2SC5926 data sheet, datasheet, data sheet, pdf, Panasonic, Power Device - Power Transistors 

Sunday, August 1, 2010

Power Amplifier with 2N3055

Simple and low cost. The optimal supply voltage is around 50V, but this amp work from 30 to 60V. The maximal input voltage is around 0.8 – 1V. As you can see, in this design the components have a big tolerance, so you can build it almost of the components, which you find at home. The and transistors can be any NPN type power transistor, but do not use Darlington types… The output power is around 60W.




Some comments:

- capacitor C1 regulates the low frequencies (bass), as the capacitance grows, the low frequncies are getting louder.

– capacitor C2 regulates the higher frequencies (treble), as the capacitance grows, the higher frequencies are getting quiter.

– this is a class B amplifier, this means, that a current must flow through the end transistors, even if there is no signal on the input. This current can be regulated with the 500? trimmer resistor. As this current incrases, the sound of the amplifier gets better, but the end transistors are more heating. But if this current decrases, the transistors are not heating so much, but the sound gets worse…



copy from : http://www.electronics-lab.com/projects/audio/042/index.html

12V LED Flasher for Cars

This is so wonderful circuit diagram Because you can up grade the out look of you car or van by using this simple circuit .Actually this is a blinking Led circuit on the other hand this circuit is called multivibrator circuit.The impotent thing of this circuit is this circuit can be operated with 12V power supply


source : http://freecircuitdiagrams4u.blogspot.com/2010/07/12v-led-flasher-for-cars.html

Wednesday, July 14, 2010

Blackberry Pearl 8130 CDMA Owners Manual PDF

BlackBerry Enterprise Server that supports this feature For more information contact your wireless service provider or administrator 1 2 3 4 5 6 7 8 9 In a calendar press the Menu key Click New Type the meeting information Press the Menu key Click Invite Attendee Click a contact To add another contact to your meeting repeat steps 4 to 6 Press the Menu key Click Save Recurrence fields Every Set the frequency of the daily weekly or monthly recurring appointment meeting or task Relative Date Set whether the monthly or yearly recurring appointment meeting or task recurs on a relative date for example on the last Friday of each month 153 Respond to a meeting invitation 1 In a meeting invitation press the Menu key 2 Click one of the following menu items Accept or Accept with Comments Tentative or Tentative with Comments Decline or Decline with Comments Note If you delete a meeting invitation from a message list before you accept or decline it the meeting is deleted from the email application on your computer View your calendar when responding to a meeting 1 In a meeting invitation press the Menu key 2 Click View Calendar To return to the meeting invitation press the Escape key Check availability of meeting participants Verify that your BlackBerry device is associated with an email account that uses a BlackBerry Enterprise Server that supports this feature For more information contact your administrator You can only check availability of meeting participants in your organization 1 In a meeting or meeting invitation below the list of meeting participants click View Availability 2 Perform any of the following actions To select the next time that all meeting participants are available click Next Available Time To view a list of the statuses that are associated with the colored bars on the screen for example busy or tentative press the Menu key Click Show Legend Change the list of participants for a meeting Verify that you are the meeting organizer 1 In a meeting in the Accepted or Declined field click a contact 2 Click one of the following menu items Invite Attendee Change Attendee Remove Attendee 3 Press the Menu key 4 Click Save 154 Send an email message to all meeting participants 1 In a meeting meeting invitation or meeting response press the Menu key 2 Click Email All Attendees Contact a meeting participant 1 In a meeting meeting invitation or meeting response highlight a contact 2 Press the Menu key 3 Click a message type or Call contact Calendar options Change the default calendar view 1 2 3 4 5 6 In a calendar press the Menu key Click Options Click General Options Change the Initial View field Press the Menu key Click Save Change the default reminder time for calendar entries 1 2 3 4 5 6 In a calendar press the Menu key Click Options Click General Options Change the Default Reminder field Press the Menu key Click Save Change the start and end time for days 1 2 3 4 5 In a calendar press the Menu key Click Options Click General Options Change the Start of Day and End of Day fields Press the Menu key 155 6 Click Save Change the snooze time for reminders 1 2 3 4 5 6 In a calendar or task list press the Menu key Click Options If necessary click General Options Change the Snooze field Press the Menu key Click Save Change the email address that you use to send messages or meeting invitations Verify that your BlackBerry device is associated with more than one email address 2 3 4 5 1 In the device options click Advanced Options Click Default Services Change the Messaging CMIME field or the Calendar CICAL field Press the Menu key Click Save View tasks in a calendar 1 2 3 4 5 6 In a calendar press the Menu key Click Options Click General Options Change the Show Tasks field to Yes Press the Menu key Click Save Change the first day of the week 1 2 3 4 5 6 In a calendar press the Menu key Click Options Click General Options Change the First Day of Week field Press the Menu key Click Save 156 Hide free time in Agenda view 1 2 3 4 5 6 In a calendar press the Menu key Click Options Click General Options Change the Show Free Time in Agenda View field to No Press the Menu key Click Save View more of the subject line for appointments in Agenda view 1 2 3 4 5 6 In a calendar press the Menu key Click Options Click General Options Change the Show End Time in Agenda View field to No Press the Menu key Click Save Change how long your device stores calendar entries 1 2 3 4 5 6 In a calendar press the Menu key Click Options Click General Options Change the Keep Appointments field Press the Menu key Click Save Your BlackBerry device deletes calendar entries that are older than the number of days that you set To restore calendar entries change the Keep Appointments field to a longer period of time Calendar entries that you received on your device within the set period of time appear in a calendar Turn off the prompt that appears before you delete items

Source: na.blackberry.com




Download

BlackBerry Storm Trouble Shooting Manual PDF

Device troubleshooting for the Storm is similar to other BlackBerry devices. The resources available when troubleshooting include: Equipment Guide Features and Specifications Pricing and Codes Device Accessories Support Knowledge Base – locate answers to complex technical issues by performing a search Answer Wizards – provide probing questions for you to ask your customer, taking you step-by-step through the process to resolve an issue or set up a product. How To’s – help your customer get started with a new product or service. Troubleshooting Guide – supply instructions to resolve your customer’s issue, provided in the order they should be followed.




As we approach the final quarter of 2008 we will introduce one of the most anticipated devices in the history of Verizon Wireless. We are proud to introduce the BlackBerry Storm available exclusively from Verizon Wireless in the US. Standout features include: An innovative crystal-clear touch screen that allows you to be as accurate as ever Orientation sensor detects landscape or portrait view Enhanced global capability Quad-Band GSM provides access to select South American destinations as well as 3G speeds with UMTS in popular destinations – including Japan! More than 200 voice destinations More than 150 data destinations Preinstalled SIM card Native document editing for Microsoft® Word, PowerPoint, and Excel files.



Download Manual PDF BlackBerry Storm Trouble Shooting

Sunday, June 13, 2010

Converter Circuit 240V AC TO 5VDC POWER SUPPLY used 7805 Regulator

Converter Circuit 240V AC TO 5VDC POWER SUPPLY used 7805 Regulator
This is simple way to power some 5v logic from a 240v ac source. If a 120v ac power adapter is used, the circuit will also work for 120v ac power lines.

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