Clear summaries & information about electronics, radio and connectivity.

Ian Poole

Electronics Notes, now incorporating provides radio & electronics tutorials, information and notes covering electronics concepts, components, radio technology, manufacturing & constructional techniques, telecommunications & connectivity (mobile & wired), antenna technology & much more for those involved in electronics, radio, telecommunications and the associated industries.
Electronics Notes is written and run by Ian Poole

Electronics Notes Videos



Career Topics

With huge numbers of people being made redundant or with no jobs as a result of the Coronavirus Pandemic, we are going to be highlighting some of our articles on career topics and we will be creating more content that we will highlight here.


How to write a CV:   Sadly, many people have lost jobs as a result of Coronavirus. We have some techniques and ideas on writing a CV.
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What's on ElectronicsNotes:

Buying Guides

Testing & Test Equipment


Electronic components

Antennas and propagation


Basic concepts


Circuits & circuit design

Ham radio

Audio Visual

Jobs & Careers

Technology History

Marconi's Magnetic Detector

The magnetic detector, often called Marconi's Magnetic Detector, was widely used in early wireless systems where it was far more sensitive and robust than the coherer. It performed well on ships, and was used for Marconi's first Transatlantic transmission.