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سخت افزار با سحر - rf
 
سخت افزار با سحر
قدرت در ذهن شماست نه در امکانات...
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(برای رسیدن به آرزوهاتون لابه لای داشتن و نداشتن امکاناتتون دست و پا نزنید اراده کنید موفقیت در ذهن شماست رویا است شما از آن واقعیت بسازید ایمان داشته باشید و از فکرتون به جای پولتون استفاده کنید البته به جای فکر به شما پیتزا نمیدن ولی قدرت واقعی رو حتما .)
سحر هستم به موفقیت شما ایمان دارم و برای شما می نویسم . متولد فروردین 1362 و رشته تحصیلیم کامپیوتر (سخت افزار ) بوده و فارغ التحصیل از دانشگاه آزاد اسلامی و البته در حال حاضر فن آوری اطلاعات (IT) می خونم و معلم و ... هستم .
خب باید اضافه کنم که حالا دیگه مهندسی نرم افزار می خونم و کارمند شدم و دیگه اینکه هنوز هم از هرفرصتی هرچند کوتاه حتی در زمانهایی مثل فقط چند دقیقه مانده به امتحان پایان ترم هم برای یاد دادن دروس مربوط به کامپیوتر برای دانشجویان یا دانش آموزان و... دریغ ندارم راستشو بگم اصلاً نمی تونم آن مطالب درسی رو که از اساتید و معلمان خوبم یاد گرفتم رو در ذهنم دفن کنم بهترین راه و تنها راهی که بتونم قدردان زحمات معلمانم باشم همینه ، یاد دادن حتی اگه برای دیگران عجیب باشه . از اینکه از وبلاگ خودتان بازدید میکنید سپاسگذارم.
پیوندهای روزانه
پنجشنبه بیست و یکم دی 1385 :: 20:8 ::  نويسنده : سحر دیناروند

Oscillators:  RF (Radio Frequency)

Electronic Circuits

Tutorials

2MHz RF Oscillator:

Basic RF Oscillator #1:

OpAmp Oscillators Simplify RF Designs: 10/10/96 EDN-Design Ideas

Oscillator, 2MHz.:

RF oscillator uses current feedback op amp: 10/03/2002  EDN - Design Ideas / A current-feedback amplifier is a well-known component with many uses. Its basic block diagram shows that its input stage is a voltage follower—in practice, a symmetrical emitter follower (Figure 1). The configuration samples the output current, converts it to voltage across a large impedance, and amplifies it to the output using a high-power, low-output-impedance amplifier..

UHF Oscillator:

اینم یه مطلب خوب راجع به چند قطعه از جمله باطری


EXPANDED RANGE
Plugs Plugs
Futurlec now stock a huge range of plugs for audio, video and TV. Together with standard RCA, DIN and XLR plugs. Also available and Quick Connects, USB connectors and test posts. All are very competitively priced, and ideal for many applications, Goto Plugs.


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Also Available:Troubleshooting and Repairing Consumer Electronics - Book


NEW RANGE

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6 x AA Battery Holder Now in stock Ni-Mh Batteries, Ni-Cad Batteries and Battery Holders, at special discount prices. Buy these re-chargeable batteries and save heaps on conventional batteries, Ni-Mh batteries are suitable for up to 1,000 recharges and have excellent discharge characteristics. A four pack of AA Batteries are great value, starting at only $7.90 . Goto Batteries



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Buzzers
Buzzers Now arrived a whole new range of quality buzzers for most applications. With wide voltage range, loud volume output and economically priced, Goto Buzzers.

NEW RANGE

Gas Sensors
CO2 Sensor Just arrived our new Gase Sensors, great for meters and gas alarms. These compact, inexpensive and easy-to-use sensors can detect and measure CO2 levels, LPG, CO and also available is an Alcohol sensor, which is ideal for use in a breath analyser unit. These sensors start from only $6.90 . Goto Sensors


 

New Hardware
Breadboards
Small Breadboard
Cable
Multicore Cable
Panel Meters
3.5 LCD Panel Meter
Buzzers
Microbuzzer
Sensors
Ultrasonic
Alcohol Sensor
CO Sensor
Speaker
Mini Speaker


Hardware Bestsellers
1.Breadboard
2.Multimeter
3.Prototyping Board
4.M42SP Stepper Motor
5.Micro Buzzer

 


 

BUZZERS

Large Piezo Buzzer Miniature Buzzer

Features
• Pin Spacing: 7mm
• Kingstate Buzzer - KPE-242
• Dimensions: 13mm Diameter, 7mm High


Order Now for $2.20



PCB Mount Piezo Buzzer PCB Mount Piezo Buzzer
Loud output piezo buzzer for printed circuit board mounting.

Features
• Loud Output
• Kingstate Buzzer - KPE-272
• Voltage: 3 - 28Vdc
• Pin Spacing: 16.5mm
• Dimensions: 32mm Diameter, 15mm High


Order Now for $1.75



Standard Buzzer Standard Buzzer

Features
• Voltage: 3 - 20Vdc
• Kingstate Buzzer - KPE-200
• Dimensions: 22.5mm Diameter, 19mm High, 28.5mm between mounting holes


Order Now for $2.50



Lg Buzzer Large Piezo Buzzer
Large piezo buzzer, with excellent sound output, can be heard for long distances.

Features
• Flying Leads Fitted
• Voltage: 12 Vdc
• High and Clear Sound, audible for many metres
• Dimensions: 23mm Diameter, 9mm High, 28mm between mounting holes


Order Now for $1.95



Large Piezo Buzzer Large Piezo Buzzer
Large piezo buzzer, with excellent sound output, can be heard for long distances.

Features
• Voltage: 12 Vdc
• Kingstate Buzzer - KPE-827
• Dimensions: 29.5mm Diameter, 4mm High, 34.5mm between mounting holes


Order Now for $1.00



Large Piezo Buzzer Large Piezo Buzzer
Large piezo buzzer, with excellent sound output, can be heard for long distances.

Features
• Slow Pulsing
• Kingstate Buzzer - KPE-253
• Dimensions: 24mm Diameter, 21.5mm High, 33mm between mounting holes


Order Now for $5.10



Large Piezo Buzzer Large Buzzer
Large piezo buzzer, with excellent sound output, can be heard for long distances.

Features
• Kingstate Buzzer - KPE-351
• Dimensions: 41mm Diameter, 15.5mm High, 50mm between mounting holes


Order Now for $3.65



Large Piezo Buzzer Large Buzzer
Large piezo buzzer, with excellent sound output, can be heard for long distances.

Features
• Voltage: 3 - 28 Vdc
• Kingstate Buzzer - KPE-260
• Dimensions: 31mm Diameter, 13mm High, 38mm between mounting holes


Order Now for $2.50



Piezo Buzzer Piezo Buzzer
Round Piezo Buzzer with large sound output, ideal for warning indication

Features
• High Quality Design
• Flying Leads Included
• Easy Mounting

Piezo Buzzer
Part No.
Description More
Info
In
Stock
Package
Qty.
Price
US$
Order
Qty.
Order
BUZZER6 6V Piezo Buzzer Yes 1 $2.50
BUZZER9 9V Piezo Buzzer Yes 1 $2.50
BUZZER12 12V Piezo Buzzer Yes 1 $2.50
BUZZER24 24V Piezo Buzzer Yes 1 $2.50



Small Buzzer Small Buzzer
Ideal for alarms and warning indication. Mounts easily with loud audible sound.

Features
• Compact Design
• Easy Mouting
• Loud Sound Output
• Flying Leads Included

Small Buzzer
Part No.
Description More
Info
In
Stock
Package
Qty.
Price
US$
Order
Qty.
Order
SMBUZZER9 9V Small Buzzer Yes 1 $2.50
SMBUZZER24 24V Small Buzzer Yes 1 $2.50

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