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

247 Followers  |  106 Following  |  373 Posts  |  Joined: 16.11.2024  |  1.6568

Latest posts by elecnotes.bsky.social on Bluesky

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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
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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
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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
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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
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The Early Effect in Bipolar Transistors: A 101 Overview

The Early effect in transistors is not often thought of, but it can have a major impact on bipolar transistor performance.

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

#earlyeffect #transistors #electroniccomponents

16.09.2025 06:26 — 👍 2    🔁 0    💬 0    📌 0
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Operational Amplifier Circuits Mouse Mat This mouse mat shows a variety of essential operational amplifier (op-amp) circuits with their design equations. This mouse matis ideal for anyone designing with op-amps as it gives a quick reference ...

Operational Amplifier Circuits Mouse Mat

One of the latest additions to my online shop is a mouse mat featuring nine popular op-amp circuits along with their key design equations.

Check it out now: electronics-notes-shop.fourthwall.com/products/ope...

15.09.2025 09:00 — 👍 3    🔁 0    💬 0    📌 0
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Mugs | Electronics-Notes The official Mugs collection for Electronics-Notes. Shop products like: EF50 Vintage Valve / Tube Coffee Mug, Morse Code Mug, and more.

Well there are a number of mugs available: electronics-notes-shop.fourthwall.com/collections/...

15.09.2025 07:40 — 👍 0    🔁 0    💬 0    📌 0

Yes, I suppose an inverting mug would result in a dangerous coffee spillage!

15.09.2025 07:38 — 👍 0    🔁 0    💬 0    📌 0
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Gallium Nitride GaN FETs & HEMTs: what they are & how they work.

Did you know that GaN FETs use a 2D electron gas, 2DEG as the basis of their operation. Effectively the GaNFET is a HEMT.

Discover the full story: www.electronics-notes.com/articles/ele...

15.09.2025 06:24 — 👍 3    🔁 0    💬 0    📌 0
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Who Knows what a BARITT Diode is?

The BARITT diode Barrier Injection Transit Time diode is a device used for generating microwave signals from a single diode.

Find out more: www.electronics-notes.com/articles/ele...

#BARITT #diode #microwaves #microwavediode

14.09.2025 06:47 — 👍 0    🔁 0    💬 0    📌 0
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Op-amp Mugs Amplify the Potential of Your Coffee Break

I've launched a series of three coffee mugs with the essential op-amp circuits on them. Each mug has two circuits, one on each side.

Check out my video for more information: youtube.com/shorts/WzbWG...

09.09.2025 10:36 — 👍 0    🔁 0    💬 1    📌 0
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What Makes IQD IQXC-240 Quartz Crystal Resonators So Great?

In this video I take a look at this amazing but very small quartz crystal resonator.

youtube.com/shorts/3Ulgl...

01.09.2025 09:14 — 👍 0    🔁 0    💬 0    📌 0
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Vintage Vacuum Tube / Thermionic Valve Mug This stylish coffee mug features three vintage vacuum tubes or valves including an R-Type valve which was first introduced in 1916.  The coffee mug is a great way of showing your intersts, or just hav...

Stylish Vintage Valve / Vacuum Tube Coffee Mug

This really cool coffee mug features three vintage vacuum tubes or valves including an R-Type valve which was first introduced in 1916.

Check out this mug - buy it now from my online store: electronics-notes-shop.fourthwall.com/products/vin...

23.08.2025 08:21 — 👍 1    🔁 0    💬 1    📌 0
Understanding Photo-Resistors or Light Dependent Resistors, LDRs
YouTube video by ElectronicsNotes Understanding Photo-Resistors or Light Dependent Resistors, LDRs

Understanding Photo-Resistors or Light Dependent Resistors: LDR 101

LDRs are ideal for many light sensing applications. They are low cost but effective, providing a huge change in resistance.

Watch my video now: youtu.be/1uev5pCVSGQ

#lightdependentresistor #photoresistor #LDR

21.08.2025 06:26 — 👍 0    🔁 0    💬 0    📌 0
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Stylish Vintage Valve / Vacuum Tube Coffee Mug

This stylish coffee mug features three vintage vacuum tubes or valves including an R-Type valve which was first introduced in 1916.

Buy one new from my online shop: electronics-notes-shop.fourthwall.com/products/vin...

15.08.2025 08:03 — 👍 0    🔁 0    💬 0    📌 0
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Battery Types & Technologies: a primer

There are various different technologies for electrical batteries and cells both rechargeable and non-rechargeable and understanding how they work can enable them to be used more effectively.

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

02.08.2025 06:16 — 👍 3    🔁 0    💬 0    📌 0
COB LEDs Are Revolutionising Lighting NOW - What Are They?
YouTube video by ElectronicsNotes COB LEDs Are Revolutionising Lighting NOW - What Are They?

COB LEDs Are Revolutionising Lighting NOW - What Are They?

Discover what these LEDs are, how they are constructed, their advantages and some of their applications. How do they compare with standard LED lights?

Watch my vidro now: youtu.be/fBRbeH7YIBc

30.07.2025 12:02 — 👍 2    🔁 0    💬 0    📌 0

Indeed it must be nice to have that sort of space!

27.07.2025 21:10 — 👍 0    🔁 0    💬 0    📌 0
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What is Bit Error Rate, BER

Bit Error Rate, BER is a key parameter for measuring the performance of a data wired or wireless data channel.

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

27.07.2025 08:17 — 👍 2    🔁 0    💬 0    📌 0
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Morse Code Coffee Mug

Bring some communication to your coffee time with this amazing Morse Code Coffee Mug.

The mug can show off your interest and passion, and it is sure to spark a conversation.

Buy one now: electronics-notes-shop.fourthwall.com/products/mor...

27.07.2025 07:38 — 👍 2    🔁 0    💬 0    📌 0
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Rhombic Wire Antenna Explained

One of the antennas that have been used in the past and to which many radio amateurs aspire is the rhombic antenna.

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

#antennas #rhombic #amateurradio #hamradio

27.07.2025 06:33 — 👍 3    🔁 0    💬 1    📌 0

I’ll need to see what I can do - may be a generic SI units conversion page.

26.07.2025 21:00 — 👍 0    🔁 0    💬 0    📌 0

I’m pleased that the website has helped.

26.07.2025 20:58 — 👍 0    🔁 0    💬 0    📌 0

Wow - that’s a while ago!

26.07.2025 20:57 — 👍 0    🔁 0    💬 0    📌 0
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Ohm's Law

Ohm's Law states that the current flowing in a circuit is directly proportional to the applied potential difference and inversely proportional to the resistance in the circuit.

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

23.07.2025 08:04 — 👍 1    🔁 0    💬 0    📌 0
The Surprising History of the LED: the amazing facts you didn't know
YouTube video by ElectronicsNotes The Surprising History of the LED: the amazing facts you didn't know

When was the LED effect first noticed: it’ll surprise you to know.

Today we used LEDs all the time, but how much do we know about their history?

It’s a story full of surprises, but touched with sadness.

Discover now in my video: youtu.be/Ee49qKypBgY

22.07.2025 06:00 — 👍 1    🔁 0    💬 0    📌 0
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Britain's Secret WW2 Electronic Component Lifesaver

Second to the magnetron, this component was probably the most important electronic component that saved Britain in the face of attacks from the Nazi Luftwaffe.

Discover the complete story in my video: youtu.be/AKMH-BPtrCw

#Vacuumtube

15.07.2025 11:12 — 👍 0    🔁 0    💬 0    📌 0

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