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25 Feb 2014

Lonnie Honeycutt writes:

This is the Nokia 5110 84X48 display that was used on millions of phones in the late 90’s. In this video, I show how to connect the Nokia 5110 LCD to an Arduino Uno, import the correct libraries to the Arduino IDE, and write code to generate text and graphics on the display.

How to use the Nokia 5110 84X48 LCD display with Arduino - [Link]

18 Feb 2014

In this episode Shahriar extensively reviews the Rigol DSA1030A-TG3 Spectrum Analyzer. A wide variety of experiments are performed using the Rigol spectrum analyzer to serve both as a tutorial to use the instrument and to demonstrate its capabilities. Some measurement results are also performed using other calibrated instruments to verify the accuracy of the spectrum analyzer. The Rigol DSA1030A-TG3 can be purchased directly from Rigol Inc.

Rigol DSA1030A-TG3 Spectrum Analyzer Review and Experiments - [Link]

16 Feb 2014

In this episode Shahriar continues his investigation of discrete Bipolar amplifier design. The advantages and disadvantages of Class-A amplifiers are explained. The conceptual schematic of a Class-B amplifier is presented which leads to the introduction of Class-AB amplifier circuit to overcome the ‘dead-zone’ impairment of a push-pull Class-B design. To further improve the Class-AB amplifier and lower its input impedance, a final Class-A followed by Class-AB amplifier is presented The component parameters are calculated and the schematics is explained in detail. All circuits are then implemented on a breadboard and tested both in the time domain and frequency domain. All schematics can be downloaded from The Signal Path website.

Tutorial on the Design and Characterization of Class-B and AB Amplifiers - [Link]

7 Feb 2014

“stevechamberlin”┬áhands-on review of the Rigol DS1074Z oscilloscope

Rigol DS1074Z Oscilloscope Review - [Link]


5 Feb 2014

Drag Soldering for Surface Mount Chips - [Link]

27 Jan 2014

This video shows the detail process of making of a chip at Philips Factory.

Chip Manufacturing Process – Philips Factory - [Link]

25 Jan 2014

Dave breadboards a precision 1A current source circuit and finds that even the application reference circuit doesn’t work as expected. Showing that you can’t just blindly trust that datasheet application circuit will work first go.

EEVblog #567 – Precision 1A Current Source - [Link]

24 Jan 2014

What is the actual capacitance of typical breadboard contacts?

It’s not in the datasheet, so Dave decides to measure it. It is well know that breadboards are not suitable for high frequency work due to the stray capacitance between contacts, but how bad is it really?

EEVblog #568 – Solderless Breadboard Capacitance - [Link]

20 Jan 2014

Dave takes a look at two cheap USB microscopes to see how suitable they are for electronics works and soldering and inspection.

EEVblog #566 – Cheap USB Microscope Reviews - [Link]

18 Jan 2014

Ever wondered how they transmit your TV signal?

David Kilpatrick from TXAustralia takes us on a detailed tour of the old decommissioned 10kW analog TV transmission system at the Artarmon facility in Sydney. It is still used to transmit digital TV. How it all works from the broadcaster video input to final transmission output up the 180m broadcast antenna. Plus some teardowns of the old equipment that’s been used to transmit the Channel 7 TV signal in Sydney since 1981.
Copper rigid coaxial lines, waveguides, filters, splitters, combiners, converters, transmission valve, power supplies and all the equipment necessary to transmit a 10kW analog or digital TV signal in a major city like Sydney.

EEVblog #569 – Tour of an Analog TV Transmission Facility - [Link]



 
 
 

 

 

 

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