July 2021 Updates

1. Updates This Month

  • A new page on Gas Discharge Tubes (GDTs), with schematic symbols, designators and examples.

    gas discharge tubes gdts schematic symbols screenshot
  • Added a new example of a noisy waveform to the Electrical Noise page.

    noise from 3 smps
  • Added a new page (in notes format) on Spark Gaps.

  • Added info on transient surge waveform specification, including a graph illustration the concept behind 8/20us and similar specifications:

    transient pulse specification graph screenshot
  • Moved Zener diode info into it’s own page.

  • Cleaned up many of the schematic symbols on this site for a consistent look and feel:

    diode symbol tvs avalanche
  • Added a diagram showing the protection diodes common to most digital CMOS pins.

    cmos inputs showing internal protection diodes

June 2021 Updates

1. Updates This Month

  • Combined the "Passing A C++ Member Function To A C Callback" page into the "C++ Callbacks" page. Updated the page with much more info, including worked examples which use https://replit.com/@gbmhunter for hosting, compiling and running small snippets of C++ code.

  • Updated the Electrical Noise page with info on the various "Colours of Noise" including graphs (in both the time and frequency domains) of white, pink, red, and blue noise.

    noise pink time domain
  • Added info on Hakko soldering tweezers to the Soldering Irons And Stations page.

    hm 2023 hakko mini hot tweezers with t9 l1 tips
  • Starting testing the Asciidoc format and comparing it against the Markdown format.

  • Added schematics, equations, worked examples, and bode plots on Capacitance Multiplier circuits.

    capacitance multiplier resistor divider
  • Removed the "Test And Measurement" section of the site. Moved the only page underneath it (the "Current Probes" page) to under "Tools" instead.

  • Added a new page on AC/DC Electronic Loads.

  • Added a new page on Line Impedance Stabilization Networks (LISNs).

  • The main structure of this sites HTML was updated to use Bootstrap containers and columns to create a responsive layout. At the same time, the main menu was updated from a hover-based tree view to a expandable tree view which should be more friendly towards users with touch screen devices. The Table of Contents for pages is now also added at a fixed location in a right-hand column for large screen devices.

    website before
    Figure 1. Before HTML/CSS Updates
    website after
    Figure 2. After HTML/CSS Updates

May 2021 Updates

April 2021 Updates

March 2021 Updates