Clear summaries & information about electronics, radio and connectivity.

Ian Poole

Electronics Notes, now incorporating provides radio & electronics tutorials and notes covering basic electronics concepts, components, radio technology, constructional techniques, ham radio, & electronics history…
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.


Top tips for Working from Home #WFH:   With many more people working from home as a result of the Coronavirus, here are some hints and tips to help you with working from home
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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

Spark Gap Transmitters

The spark gap transmitter was the first type of transmitter to be used. Although very inefficient and crude by today's standards, it was the first form of transmitter to enable radio to span the Atlantic Ocean.