Electronics Notes by Ian Poole's Avatar

Electronics Notes by Ian Poole

@elecnotes.bsky.social

My aim is to provide clear summaries & information about electronics, radio & connectivity. I’ve had a fantastic career in electronics - now I’d like to help others into it. Website: https://www.electronics-notes.com #electronics #RFdesign #antennas

253 Followers  |  106 Following  |  396 Posts  |  Joined: 16.11.2024  |  1.629

Latest posts by elecnotes.bsky.social on Bluesky

Post image

MOSFET vs. IGBT – Understanding the Giants of Power Electronics

IGBTs & MOSFETs are both big players in power electronics & these two types of device can be considered as rivals but it’s necessary to select the correct option for each circuit.

Discover: www.electronics-notes.com/articles/ele...

08.02.2026 22:52 — 👍 1    🔁 1    💬 0    📌 0
Post image

Resistor Colour Code 101 - What You Need to Know

In the video I provide all you need to know along with practical examples.

Watch now: youtu.be/QhBJnPXN6L0

#resistors #colourcode #colorcode #resistorcolorcode #resistorcolourcode #electroniccomponents

03.02.2026 14:49 — 👍 0    🔁 0    💬 0    📌 0

I’m so disappointed - the terrestrial weather here has been overcast and cloudy. No chance of seeing any auroral lights.

21.01.2026 10:08 — 👍 0    🔁 0    💬 0    📌 0
Post image

They were trying to invent a field effect transit instead they invented the point contact transistor.

It was a great Christmas present for the bosses at Bell Labs as it was demonstrated just before the the festive season.

Find out more in my YouTube short video: youtube.com/shorts/D9olB...

20.01.2026 10:08 — 👍 1    🔁 0    💬 0    📌 0

Brings back some memories!

19.01.2026 08:56 — 👍 1    🔁 0    💬 0    📌 0
Preview
All Products | Electronics-Notes The official All Products collection for Electronics-Notes. Shop products like: , Basics of Inductance Crib Sheet, and more.

'Skill Up for 2026' with My Amazing Value Technical Ebook Bundle.

The bundle includes Guides to Operational Amplifiers; Superhet Radio, and Multimeters.

These three popular ebooks are now offered with a saving of ~20%.

Don't mss out: electronics-notes-shop.fourthwall.com/collections/...

14.01.2026 09:34 — 👍 0    🔁 0    💬 0    📌 0
RESISTORS 101: the Mysteries Unveiled
YouTube video by ElectronicsNotes RESISTORS 101: the Mysteries Unveiled

RESISTORS 101: the Mysteries Unveiled

Check out all you need to know about resistors in electronics in my latest video.

Watch now: youtu.be/ERce1gSIKmk
#resistors #resistors101 #resistorbasics #electronics #electroniccomponents

13.01.2026 09:57 — 👍 2    🔁 0    💬 0    📌 0
Post image

How the Vacuum Tube Created Modern Electronics

A very brief introduction to how the vacuum tube / thermionic valve founded what we call electronics today.

Watch now: youtube.com/shorts/SnZAs...

#vacuumtube #thermionicvalve #vintageradio #techhistory #historyoftechnology #electronics

03.01.2026 11:43 — 👍 1    🔁 0    💬 0    📌 0

Yes - thanks for your comment and input to add to my post.

03.01.2026 07:14 — 👍 1    🔁 0    💬 0    📌 0
Post image

Why You NEED An Emitter Follower

Check out my video now: youtu.be/fSki6td8L4c

#electronics #circuitdesign #emitterfollower

01.01.2026 22:56 — 👍 1    🔁 0    💬 1    📌 0
Post image

Brilliant Morse Code Coffee Mug

Featuring every letter of the alphabet clearly displayed with its Morse code equivalent, it's perfect for showing off your passion for radio and communication.

Buy yours now: electronics-notes-shop.fourthwall.com/en-gbp/produ...

#merch #coffeemug #morsecode

28.12.2025 12:51 — 👍 2    🔁 0    💬 0    📌 0
Preview
A Concise Guide to RF Attenuators and Their Design This PDF download covers the basic aspects of constant impedance Pi and T RF attenuators and their design. RF attenuators are used in many areas of electronics and in particular within RF design where...

A Concise Guide to RF Attenuators and Their Design

I've just launched the first of my 'Concise Guides.'

At 5k words it looks at RF attenuators - the constant impedance Pi and T attenuators.

Buy it now or check out more details: electronics-notes-shop.fourthwall.com/products/a-c...

15.12.2025 08:37 — 👍 1    🔁 0    💬 0    📌 0
Preview
A Guide to Superhet Radio Technology This book covers all the basic aspects of the superhet radio. The aim was to provide all the essential elements of the superheterodyne radio in one volume, explaining the background, the basic concept...

Check out my ‘Guide to Superhet Radio Technology’

This book covers all the basic aspects of the superhet radio.

To buy the book or find out more details: electronics-notes-shop.fourthwall.com/products/a-g...

13.12.2025 17:38 — 👍 1    🔁 0    💬 0    📌 0
Why are Silicon CARBIDE Schottky diodes so great?
YouTube video by ElectronicsNotes Why are Silicon CARBIDE Schottky diodes so great?

Are SILICON CARBIDE Schottky Diodes Really So Great?

Check out my video to find out what SiC Schottky diodes and and what their advantages really are.

Watch my vide now: youtu.be/RWVpvi2tlcA

#SiC #Siliconcarbide #Scottky #diodes #electrponiccomponents

09.12.2025 09:50 — 👍 2    🔁 0    💬 0    📌 0
Post image

Why Metal Film Resistors Have Inductance

In this video I explain why these resistors have inductance and where they can be used.

Check out the video now: youtu.be/XNyl0Pxas64

#resistors #inductance #metalfilm #electroniccomponents

05.12.2025 08:59 — 👍 0    🔁 0    💬 0    📌 0
Post image

Does the Beverage antenna have any uses these days, or is it obsolete?

Find out more about the antenna, its advantages & if it has any uses today.

Discover: www.electronics-notes.com/articles/ant...

#antennas #hamradio #hamr #amateurradio

04.12.2025 00:09 — 👍 1    🔁 0    💬 0    📌 0
Post image

Exploring Electrolytic Capacitors - all the essential information

Understand the essentials of electrolytic capacitors, discover their benefits & understand how they can be used to provide high levels of capacitance with high reliability.

More: www.electronics-notes.com/articles/ele...

01.12.2025 15:15 — 👍 2    🔁 0    💬 0    📌 0
Post image

Understanding Transistor Current Gain Notations 101: beta, hfe hFE

Check out my video now: youtu.be/DcfExBrI8Cw

29.11.2025 18:08 — 👍 1    🔁 0    💬 0    📌 0
Post image

Why the OC71 Transistor is a Big Deal

This transistor was an iconic electronic component of the 1960s.

Find out all about it in my video: youtube.com/shorts/AHCmo...

#OC71 #transistor #vintageradio #electroniccomponents #techhistory #historyoftechnology

25.11.2025 15:01 — 👍 1    🔁 0    💬 0    📌 0
Post image

1N5822 Schottky Diode

I’ve just released the YouTube Short version of my 1N5822 video.

In this short I provide some of the basic details of this popular diode.

Check out the video now: youtube.com/shorts/AzRTi...

18.11.2025 12:13 — 👍 1    🔁 0    💬 0    📌 0
Post image

How to Clean Away Battery Corrosion and Get Gadgets Working Again

In this video I show you how I cleaned up an old battery powered clock where the battery had leaked and brought it back to life.

Check out the video now: youtu.be/JXIT_CWEmN8

11.11.2025 10:43 — 👍 3    🔁 0    💬 0    📌 0
Post image

Understanding how the Superhet / Superheterodyne Radio Works

Check out my video to gain a good understanding.

Watch now: youtu.be/dk6DdG4vs4Y

#superhet #superheterodyne #radio #amateurradio #hamradio #hamr

09.11.2025 07:55 — 👍 3    🔁 0    💬 0    📌 0
Post image

CAPACITORS 101: the Mysteries Unravelled

In my YouTube short I give a quick overview of capacitors and what they are.

It’s a great introduction to find out what they are with a link to a longer form video.

Check out my video now: youtube.com/shorts/UC_7g...

04.11.2025 09:57 — 👍 3    🔁 0    💬 0    📌 0
Preview
Vintage Tech Reigns Vacuum Tube / Valve T-Shirt This truly unique T-shirt shows some vintage valves or vacuum tubes from the first half of the 20th century. You can show off your interest in technology with this T-shirt that has been designed using...

I've just launched a new vintage valve / vacuum tube T-shirt on my online shop.

This truly unique T-shirt shows some vintage valves or vacuum tubes from the first half of the 20th century.

Check out more details on my online shop: electronics-notes-shop.fourthwall.com/products/vin...

13.10.2025 10:30 — 👍 2    🔁 0    💬 0    📌 0
Discover My Amazingly Useful Op-Amp Circuits Mouse Mat
YouTube video by ElectronicsNotes Discover My Amazingly Useful Op-Amp Circuits Mouse Mat

Discover My Amazingly Useful Op-Amp Circuits Mouse Mat

Check out this incredibly useful mouse mat from my online shop in this video.

youtube.com/shorts/xAe2w...

07.10.2025 08:57 — 👍 1    🔁 0    💬 0    📌 0
1N5822: An Amazing Schottky Diode You Must Discover
YouTube video by ElectronicsNotes 1N5822: An Amazing Schottky Diode You Must Discover

1N5822: An Amazing Schottky Diode You Must Discover

In this video, I explore the properties, characteristics, and applications of the 1N5822 Schottky Diode, including its high current capacity, low forward voltage drop, and fast switching times.

Watch now: youtu.be/SurpzglsZ78

#1N5822 #Schottky

30.09.2025 09:25 — 👍 1    🔁 0    💬 0    📌 0
Post image

Transistor Circuit Configurations Infographic: common base, collector & emitter

Check out this infographic now: www.electronics-notes.com/articles/sum...

#transistor #circuitdesign #commonemitter #emitterfollower, #commoncollector #commonbase #electroniccomponents

29.09.2025 14:00 — 👍 4    🔁 0    💬 0    📌 0
Post image

I'm delighted to say that my YouTube channel has just gone through the 55k subscribers barrier.

Check out my channel now: www.youtube.com/@Electronics...

#electroniccomponents #youtube #videos

29.09.2025 08:38 — 👍 2    🔁 0    💬 0    📌 0
Preview
A Guide to Superhet Radio Technology This book covers all the basic aspects of the superhet radio. The aim was to provide all the essential elements of the superheterodyne radio in one volume, explaining the background, the basic concept...

A Guide to Superhet Radio Technology - ebook

This book covers all the basic aspects of the superhet radio - discover all the contents in the description.

Check it out &buy it now: electronics-notes-shop.fourthwall.com/products/a-g...

#superhet #superheterodyne #radio #technology #RFdesign

20.09.2025 08:51 — 👍 0    🔁 0    💬 0    📌 0
Schottky DIODES: What You Really Need to Know!
YouTube video by ElectronicsNotes Schottky DIODES: What You Really Need to Know!

Schottky DIODES: What You Really Need to Know!

Learn about the capabilities of Schottky diodes and what makes them such useful electronic components for today's electronics scene.

Check out the video: youtu.be/JBmSv2kitWM

#Schottky #Schottkydiodes #diodes #semiconductors #electroniccomponents

16.09.2025 08:50 — 👍 3    🔁 0    💬 0    📌 0

@elecnotes is following 17 prominent accounts