One Transistor Radio

This Circuit is One transistor Radio for All AM longwave and shortwave signal. The Transistor use for demodulation and amplification signal from 1.5 m antenna from ferrite Rod.

The headphone used as supply power from battery 1.5 Volt , also turn off the supply when unplug.

For L1 you can used ferrite rod and AM and SW winding. Coil is made up by using 26 SWG 100 turns on ferrite rod.

Learn about AM and FM radio technology and the the functional components used in creating AM-FM receivers and amplifiers. 56 page training course is divided 

into 9 lessons; Audio Amplifier, AM Detector, AM IF, AM Amplifier, AM Mixer & Oscillator, FM Detector, 1st FM IF, 2nd FM IF, FM RF Stages. “Superheterodyne” 

designed to receive standard AM and FM broadcast frequencies. New transistor module allows you to switch between the modern integrated circuit (IC) technology 

and the original transistor technology. Includes radio mounting stand. 

The AM/FM Radio project is divided into two parts, the AM Radio Section and the FM Radio Section. Initially, only identify the parts that you will need for the AM radio as listed in the manual. Do not open the bags listed for the FM radio. 

A separate parts list will be shown for the FM radio after you have completed the AM radio. 9 volt battery needed but not included.

Audio Amp, AM Detector, AM IF, AM Amp, AM Mixer & Oscillator, FM Detector, 2 x FM IF, FM RF Stages. With 56 page Training Course is divided into 9 lessons. Check it Out !

Electroscope

This Circuit can measure voltage of electrostatic charge.

Source : Elektor Circuit

This is by far the easiest and most useful. The other two both require you to mount a thin strip that is used as the indicator, and in both cases mounting this strip is a big hassle and the resulting assembly does not work very well. This scope works out of the box, and works perfectly. The readings are sensitive and reproducible. Check it Out!

DIN rail ARM7 Ethernet/USB Subsystem (LPC2138)

• This package is ideal for industrial use, facilitating quick connection and relocation
• DIN rail mountable and compatible with OKW Railtec C-5 enclosure
• On-board BASIC compiler runs 30 times faster than interpreted BASIC

SUCCESS

Astronomy

A NASA astronomer selected ARM Ethernet controllers to create a one-off error-correction system for an infrared telescope. Our secondary mirror assembly would occasionally jerk. So we constructed a system using eight BMA180 accelerometers, each attached to an ARMWeb SBC.
These were then programmed to acquire and stream the accelero- meter data to a Linux server. The server would save and graph the data in real time. When an 'image jump' was recorded, this accelero-
meter data was analyzed to help identify the faulty mechanism.

—Anthony D.
University of Hawaii

APPLICATIONS

• Ethernet
• Wireless
• Sensors
• Monitoring

TECHNICAL SPECIFICATIONS

System

• DIN rail enclosed 60 MHz 32 bit ARM7 CPU (LPC2138)
• Programmable in a compiled BASIC, C, HTML and XML
• On-board BASIC compiler runs 30 times faster than interpreted BASIC
• 1 million I/O operations per second

Size

• 88.5mm x 84mm (3.4” x 3.3”)
• Compatible with DIN rail OKW Railtec C-5 enclosure

Storage

• 512k flash with 64k user code space
• 224k available for user web pages
• 224k user file space
• 32k RAM

Power

• Less than 1W
• 5-40V DC input
• Output power 3.3V regulated, 250 mA available to user

Connectors

• 25 pins programmable for I/O
• 8 x 10 bit analog A/Ds, 1 10bit DAC
• Optional USB connection

DOCUMENTATION

ARM7 Ethernet/USB Microcontroller User
Guide

FREE SOFTWARE TOOLS

PRO-Plus Board 100 MHz (LPC1751)

Pro Plus Board LPC1751 100 Mhz

•  More than doubles the processing speed of the PRO-Start.
• Twice the number of I/O connections of the PRO.

SUCCESS

Wireless

A car leasing company wanted to a simple solution for monitoring drivers’ cell phone usage.
        Selecting our Arduino Shield-compatible MPUs for its work, the team created a successful prototype that they scaled and deployed across the company’s fleet of vehicles.

APPLICATIONS

• Sensors
• Monitoring
• Measurement
• Logging
• Simple controls

TECHNICAL SPECIFICATIONS

System

• Board-mounted 100 MHz ARM M3 CPU (LPC1751)
• Programmable in a compiled BASIC or C
• Operates faster than 24 million BASIC lines/second

Size

• 2.1” x 2.05”

Storage

• 20k user code space (1600 Instructions)
• 5k user data
• 32k flash size
• 8k RAM size

Power

• 350 mW
• 5-7V DC input

Connectors

• Debug connector
• Connections for 52 digital I/O
• 4 x 12 bit analog A/Ds
• Programming dongle sold separately

DOCUMENTATION

PRO-Plus Board User Guide

FREE SOFTWARE TOOLS

PRO Start Board 50 MHz (LPC1114)

PROstart LPC1114

• Even our lowest priced Arduino-shield compatible CPU is faster and offers more memory than competing boards
• Offers full IEEE 754 floating point support
• Reduced price brings high performance to entry-level products

APPLICATIONS

• Sensors
• Monitoring
• Measurement
• Logging
• Simple controls

TECHNICAL SPECIFICATIONS

System

• Board-mounted 50 MHz ARM M0 CPU (LPC1114)
• Programmable in a compiled BASIC or C
• Support for Arduino Sketches

Size

• 2.1”x2.05”

Storage

• 20K user code space (1600 Instructions)
• 2K user data
• 32K flash size
• 4K RAM size

Power

• < 50 mW
• 5-7V DC input

Connectors

• Debug connector
• Connections for 22 digital I/O
• 6 x 10 bit analog A/Ds
• Programming dongle sold separately

DOCUMENTATION

PRO Start User Guide

FREE SOFTWARE TOOLS

ARM7 Microcontroller 60 MHz (LPC2103)

• Connect from your PC via USB Port
• Create code using your BASIC programs

TECHNICAL SPECIFICATIONS

System

• 60 MHz ARM7 CPU (LPC2103)
• Programmable in a compiled BASIC
• Operates faster than 10 million BASIC lines/second
• IEEE 754 floating-point support

Size

• 50 x 80 mm
• Compatible with Hammond 1455C801 enclosure

Storage

• 16k user code space
• 6k user data
• 32k flash
• 8k RAM

Power

• 350 mW
• 7-12V DC input
• Provides 500 mA +5V

Connectors

• USB-B type
• Connections for 24 digital I/O
• 8 x 10 bit analog A/Ds
• Accepts 0.1” components, DB Style and 3.5mm terminal strips

APPLICATIONS

• Sensors
• Monitoring
• Measurement
• Logging
• Simple controls

Prototyping Area

• 2 square inches

DOCUMENTATION

ARM7 Microcontroller User Guide

FREE SOFTWARE TOOLS

ARM BASIC Board 50 MHz (LPC1114)

• Connect to USB requiring no other support (power supplies, programmers)
• Excels as stand-alone or to extend PC via USB to control mission

TECHNICAL SPECIFICATIONS

System

• Board-mounted 50 MHz ARM M0 32-bit CPU (LPC1114)
• Programmable in a compiled BASIC
• Operates faster than 6 million BASIC lines per second
• IEEE 754 floating-point support
• Internal 12 MHz 1% oscillator

Size

• 50 x 80 mm
• Compatible with Hammond 1455C801 enclosure

Storage

• 32k flash space
• 4k RAM

Power

• Less than 150 mW
• 5V DC input
• Provides 100 mA +3.3 V

Connectors

• USB mini-B
• 22 TTL compatible, 2.4V threshold, 5V tolerant
• 6 x 10 bit analog A/Ds
• Accepts 0.1” components, DB Style, and 3.5mm terminal strips

Prototyping Area

• Approx. 2 square inches

DOCUMENTATION

ARM BASIC Board User Guide

FREE SOFTWARE TOOLS

AM FM Radio Kit, Good for Educational

This Kit AM FM Radio, good for educational purposed for building AM FM Radio and for knowing more AM FM radio receiver . 

This Kit come with books as a guide for study more about the AM FM circuit, start from Audio Amplifier, AM Detector, AM IF, AM Amplifier, AM Mixer & Oscillator, FM Detector, 1st FM IF, 2nd FM IF, and FM RF Stages. Superheterodyne receiver of standard AM and FM broadcast frequencies.

 

• AM/FM Radio Kit (Combo IC & Transistor)
• Includes 64 page educational training guide
• with multiple choice questions and answers
• Training course of 56 pages is divided into 9 lessons: Audio Amplifier, AM Detector, AM IF, AM Amplifier, AM Mixer & Oscillator, FM Detector, 1st FM IF, 2nd FM IF, and FM RF Stages. Superheterodyne receiver of standard AM and FM broadcast frequencies. Makes an excellent classroom project. Requires 9V battery, not included.

FM Radio Kit with Auto Scan Frequency

This Kit FM Radio Using IC as FM Tuner and IC for Amplifier. This FM Radio Kit scan FM frequency in 88-108 MHz and using auto scan  for scans up and for reset.

• Build this kit to assemble a monophonic FM receiver (88-108mhz) with electronic auto-scan
• Will help you understand the basics of working with printed circuit boards
• Become familiar with a variety of electronic components
• Develop good soldering skills
• For 30 years Elenco has been using their strong engineering and design skills to develop reliable, affordable electronic test equipment, tools, and educational kits
  This kit is a monophonic FM (frequency modulation) receiver designed to receive FM signals in the frequency range (88-108mhz) it uses electronic auto-scan to search for FM stations. This scan system is done with two button switches-one switch scans up, the other resets to the start of the tuning position.
  

Straight Radio or Crystal Radio

OA70 / IN34 / IN60 is Germanium Radio, choose only one type. Antenna high from Ground is high is possible, ground is a must to Steel Water pipe, or making one from a piece of copper approximately 1 meter down to the ground, so will be voltage between ground and radio wave pick up by antenna.

I have build this Radio and connected input speaker to line input notebook and running with Open Lab software and can pick up Radio Signal from about 6 km air distance.

====+  Parts List for   +====

10 nF                              1   Capacitor
VC 500 pF                     1   Variable Capacitor
OA70/IN34/IN60          1   D
GND                              1   GND
108 Turns,12 Turns        L Tap between 108 Turns and 12 Turns
8-2000 Ohm                  1   SPKR or Earphone 8 - 2000 Ohms


This is one of Product of Crystal Radio Kit with Mineral Gateway as Diode and without Battery, this crystal radio specification :

• Conduct a radio wave experiment
• Capture AM broadcasting radio waves
• Works without the need of a battery
• Science guide included (68 color pages)
• Another fun, educational product from the company that brings you Snap Circuits