Categories
Programming

Create GIF Files in Octave and Matlab

Nowadays, in any technical work of a certain level, it is common to program and simulate codes in mathematical simulators such as Matlab, or its free “equivalent” Octave. Typically the results of these simulations can be part of documents, presentations and meetings. On many occasions we could benefit from motion graphics to better visualize, explain […]

Categories
Books

Tuxedo Park by Jennet Conant

Tuxedo Park, by Jennet Conant, is one of the few non-technical books that guarantees an interesting read for the entire scientific community. Especially recommended for our audience of electronics hobbyists, electronic engineers, telecommunications engineers and physicists, Tuxedo Park is a surprising, inspiring and enriching book for anyone whose profession is related to the world of […]

Categories
Electronics Projects

Low Distortion Audio Oscillator Build

Low Distortion Audio Oscillator Developed and Written by  Basin Street Design. The following low distortion audio oscillator is based on the Wien-Bridge oscillator. The previous link developes the math. I get it. You can skip that if you don’t care why the Wien bridge oscillator works. 1. Low Distortion Audio Oscillator Schematics Here is the […]

Categories
Analog Electronics Electronics Projects

Bainter Notch Filter: Design and Tuning

This article reviews the theory and implementation of the Bainter Notch Filter. Written and developed by  Basin Street Design. This calculation examines the effectiveness of a Bainter notch filter such as the Bainter circuit as seen in the figure below [1]. Low-pass, high-pass, and standard notch responses can be realized. The following picture shows the […]

Categories
Analog Electronics

Wien Bridge Oscillator: Unbalanced and Balanced

This article reviews the theory of the Wien Bridge Oscillator. Written to support his own practical projects by Basin Street Design. Here is the famous Wien Bridge oscillator circuit [1]. This picture is one shamelessly stolen from somewhere on the interwebs and modified for my purposes: The oscillator operates by sending part of its output […]

Categories
Electronics Projects

HomeMade PCB Manufacturing

HomeMade PCB project, written and developed by Luca_004. Hi guys, in this article I will present the creation and manufacture of a homemade printed circuit board (PCB) with the simplest items at home. HomeMade PCB Tutorial Step 1: Create a Layout With the program of your choice you create a layout for a single-sided circuit […]

Categories
Electronics Projects

Magic Eye: Emulation with Arduino

“Magic Eye” emulation project written and developed by Konstantin Dorohov (USA). The recorders and receivers of my youth used the now defunct tube level indicators or “magic eye” on 6E1P or 6E5C lamps. Now is the time for nostalgia for the “old days” and you can buy assembled indicators on aliexpress or amazon. They are […]

Categories
Signals and Systems

Group Velocity: Mathematical Proof

The term group velocity defines the rate at which the envelope of a signal propagates in a transmission medium. This signal transmitted over the medium is obtained when a modulating signal modulates a central frequency, typically called the carrier [1]. As a result, the modulating signal and the envelope are equivalent. While the envelope propagates […]

Categories
Signals and Systems

Frequency Constant Phase Shift and Distortion

Transmission media and electronic components can have multiple effects on the signals propagating through them [1] [2]. To avoid phase distortion, it is necessary that the phase of the system, the phase shift introduced by the medium, is linear with frequency. This case, whose effect consists of a time delay of the signal, is often […]

Categories
Signals and Systems

The Mathematics of Linear Distortion

The mathematics of linear distortion only applies to linear and time invariant systems [1] [2]. Therefore, these systems and their translation to the frequency domain, where the mathematical analysis is simplified, are briefly summarized. Then it is discussed how the presented theory can be applied to real transmission media and/or electronic components. Finally, the mathematics […]