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
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
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
Check out my video to gain a good understanding.
Watch now: youtu.be/dk6DdG4vs4Y
#superhet #superheterodyne #radio #amateurradio #hamradio #hamr
November 9, 2025 at 7:55 AM
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
Check out my video to gain a good understanding.
Watch now: youtu.be/dk6DdG4vs4Y
#superhet #superheterodyne #radio #amateurradio #hamradio #hamr
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...
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...
November 4, 2025 at 9:57 AM
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...
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...
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...
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...
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...
electronics-notes-shop.fourthwall.com
October 13, 2025 at 10:30 AM
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...
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...
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...
Check out this incredibly useful mouse mat from my online shop in this video.
youtube.com/shorts/xAe2w...
Discover My Amazingly Useful Op-Amp Circuits Mouse Mat
YouTube video by ElectronicsNotes
youtube.com
October 7, 2025 at 8:57 AM
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...
Check out this incredibly useful mouse mat from my online shop in this video.
youtube.com/shorts/xAe2w...
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
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
1N5822: An Amazing Schottky Diode You Must Discover
YouTube video by ElectronicsNotes
youtu.be
September 30, 2025 at 9:25 AM
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
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
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
Check out this infographic now: www.electronics-notes.com/articles/sum...
#transistor #circuitdesign #commonemitter #emitterfollower, #commoncollector #commonbase #electroniccomponents
September 29, 2025 at 2:00 PM
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
Check out this infographic now: www.electronics-notes.com/articles/sum...
#transistor #circuitdesign #commonemitter #emitterfollower, #commoncollector #commonbase #electroniccomponents
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
Check out my channel now: www.youtube.com/@Electronics...
#electroniccomponents #youtube #videos
September 29, 2025 at 8:38 AM
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
Check out my channel now: www.youtube.com/@Electronics...
#electroniccomponents #youtube #videos
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
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
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...
electronics-notes-shop.fourthwall.com
September 20, 2025 at 8:51 AM
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
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
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
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
Schottky DIODES: What You Really Need to Know!
YouTube video by ElectronicsNotes
youtu.be
September 16, 2025 at 8:50 AM
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
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
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
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
September 16, 2025 at 6:26 AM
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
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
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...
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...
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 ...
electronics-notes-shop.fourthwall.com
September 15, 2025 at 9:00 AM
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...
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...
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...
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...
September 15, 2025 at 6:24 AM
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...
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...
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
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
September 14, 2025 at 6:47 AM
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
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
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...
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...
September 9, 2025 at 10:36 AM
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...
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...
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...
In this video I take a look at this amazing but very small quartz crystal resonator.
youtube.com/shorts/3Ulgl...
September 1, 2025 at 9:14 AM
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...
In this video I take a look at this amazing but very small quartz crystal resonator.
youtube.com/shorts/3Ulgl...
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...
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...
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...
electronics-notes-shop.fourthwall.com
August 23, 2025 at 8:21 AM
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...
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...
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
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
Understanding Photo-Resistors or Light Dependent Resistors, LDRs
YouTube video by ElectronicsNotes
youtu.be
August 21, 2025 at 6:26 AM
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
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
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...
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...
August 15, 2025 at 8:03 AM
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...
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...
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...
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...
August 2, 2025 at 6:16 AM
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...
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...
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
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
COB LEDs Are Revolutionising Lighting NOW - What Are They?
YouTube video by ElectronicsNotes
youtu.be
July 30, 2025 at 12:02 PM
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
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
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...
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...
July 27, 2025 at 8:17 AM
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...
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...
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...
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...
July 27, 2025 at 7:38 AM
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...
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...
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
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
July 27, 2025 at 6:33 AM
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
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
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...
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...
July 23, 2025 at 8:04 AM
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...
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...
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
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
The Surprising History of the LED: the amazing facts you didn't know
YouTube video by ElectronicsNotes
youtu.be
July 22, 2025 at 6:00 AM
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
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