Uploaded March 2023 | Updated September 2026, 2 weeks ago
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Hello! Welcome to C# Programming for Absolute Beginners!
Here you can learn C# from absolute basics! This course assumes you have ZERO knowledge in software development, and you want to get started today!
Want to create software? Websites? Video games in Unity? Get a programming job? Develop software as a hobby? Well you can do all of these things by learning from this C# course!
If you have any questions regarding the content of this lesson, please leave a comment below and I will be happy to answer any questions you many have!
It's HIGHLY recommended that you watch the videos in the playlist order, as some lessons rely on the knowledge learned in previous lessons.
Playlist URL: youtube.com/playlist?list=PLJitdQVsSaf7nHcznVnW7ALB2K514QKk_
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Topics covered in this lesson:
- Working with strings and substrings in C#!
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C# Tutorial - Full Course for Beginners
Simple C# Desktop Application - Complete Tutorial Series
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C# Tutorial For Beginners & Basics - Full Course 2022
HOW TO PROGRAM in C#
Create a C# Application from Start to Finish - Complete Course
Video Title: 1-5. Working with Strings and Substrings | C# Programming for Absolute Beginners
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1-5, working, strings, substrings, c# software development for beginners, software development, beginner, c# software development, c# development, c# programming for beginners, c# development for beginners, c# coding, csharp tutorial for beginners, c sharp, c sharp tutorial, c sharp full course, c# tutorial for beginners, c# visual studio, c# full course, how to program, programming tutorial, free programming tutorial, visual studio, visual studio 2022, c#, csharp
If this course helped you, please click the THANKS button and help support our channel! It took many many weeks to create and edit!
Your THANKS comment will be highlighted so that everybody can see how awesome you are!
Thank you! :)
-----
Hello! Welcome to C# Programming for Absolute Beginners!
Here you can learn C# from absolute basics! This course assumes you have ZERO knowledge in software development, and you want to get started today!
Want to create software? Websites? Video games in Unity? Get a programming job? Develop software as a hobby? Well you can do all of these things by learning from this C# course!
If you have any questions regarding the content of this lesson, please leave a comment below and I will be happy to answer any questions you many have!
It's HIGHLY recommended that you watch the videos in the playlist order, as some lessons rely on the knowledge learned in previous lessons.
Playlist URL: youtube.com/playlist?list=PLJitdQVsSaf7nHcznVnW7ALB2K514QKk_
-----
Topics covered in this lesson:
- Working with strings and substrings in C#!
-----
BECOME A MEMBER OF OUR CHANNEL!
If you become a member of our channel, you get various cool and unique benefits!
Benefits:
- Early access to new videos
- A personalized shoutout in each new video during your membership
- Priority responses to your videos comments
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#CSharp #Programming #SoftwareDevelopment
Tags:
C# Tutorial - Full Course for Beginners
Simple C# Desktop Application - Complete Tutorial Series
C# Full Course for free 🎮
C# Tutorial For Beginners & Basics - Full Course 2022
HOW TO PROGRAM in C#
Create a C# Application from Start to Finish - Complete Course
Video Title: 1-5. Working with Strings and Substrings | C# Programming for Absolute Beginners
Video File Created Date: 18 January 2023 (Video may or may not have been captured on this date, it shows the date the video was last converted.)
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![Oxygen Sensors 101 - Testing O2 Sensors for Resistance and DC Voltage
[Scan Tools]
CHEAP bluetooth scan tool: https://amzn.to/3RmUZoX
Scan tool (No phone required): https://amzn.to/30C0IJC
[Recommend Tools]
Cheap Multimeter: https://amzn.to/2Oh68Hy
Crocodile Clips: https://amzn.to/30AxCu5
Propane Nozzle: https://amzn.to/3eJ8REv
Chapters:
0:00 Intro
0:15 The Purpose of This Test
1:02 What is an O2 Sensor?
4:20 Types of O2 Sensor
5:10 Test Heater Element for Resistance
6:54 Test for Voltage
Oxygen Sensors 101 - Testing O2 Sensors for Resistance and DC Voltage
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#OxygenSensors #O2Sensors #LambdaSensor
[Graphing O2 sensors]
We want to graph the UPSTREAM oxygen sensors for performance issues. They produce voltage between 0 and 0.9 volts.
We want to graph the DOWNSTREAM oxygen sensors to check the efficient of the cat. They produce voltage between 0 and 0.9 volts.
High graph/voltage - RICH (Too much fuel, too little air)
Low graph/voltage - LEAN (Too much air, too little fuel)
Erratic graph / No graph / no voltage - Failing O2 sensor
[How Many? - TYPICAL Example]
A V6 has 6 cylinders, with 2 cylinder heads. A cylinder head groups a row of cylinders, so 3 cylinders per head in this example. The exhaust manifold captures the exhaust as a result of the engine combustion at each head. So on a V6, you have 2 exhaust manifolds. The vehicle manufacturer decides how this exhaust is processed and exited from the vehicle. It could be combined into one tailpipe, two or four for example.
Usually each exhaust manifold will have its own set of O2 sensors and a catalytic converter.
So on a V6 or V8, there is typically 4 total O2 sensors.
[How to]
RULE:
- When the car is COLD, the O2 sensors will flat line (not oscillate / no amplitude).
- As the car heats up, and the O2 sensors heat up, the voltage output begins to oscillate until they reach their temperature of around 600F.
1. Get the car to operating temperature. This ensures the readings are accurate. The engine will go into CLOSED LOOP when warm, this is where the engine listens to the O2 sensors to adjust the air/fuel ratio.
2. For performance issues, we want to test all UPSTREAM sensors, so BANK X Sensor 1 (upstream/precat/etc) as these provide feedback to the ECU to adjust the air/fuel ratio based off their voltage readings.
NOTE: The good thing about having two UPSTREAM sensors is that you have a point of comparison.
3. Check the graphs are making sharp continuous sine waves, like spikes oscillating. When giving gas, the spikes will happen MORE frequently and itll be more condensed. The graph will typically go from 0.01v to 0.9v
[Interpreting the Results]
- The actual engine code gives you the first clue. Is it a low voltage issue? General malfunction? Heater circuit malfunction?
- Solid line can mean a dead sensor or sensor failure (Assuming the car is warm)
- If the spikes are LESS frequent, you have a slow response condition.
- No voltage, dead sensor or wiring (May throw a specific code for this issue.)
These terms are all one and the same:
Front O2 sensors
upstream
Bank X Sensor 1
pre-cat
before cat
manifold
These are all one and the same:
Rear O2 sensors
downstream
Bank X Sensor 2
after cat
post-cat
Example O2 Codes:
P0130,P0131,P0132,P0133,P0134,P0135,P0136,P0137,P0138,P0139,P0140,P0141,P0142,P01403,P01404,P01405,P01406,P0147
Video Title: Oxygen Sensors 101 - Testing O2 Sensors for Resistance and DC Voltage
Video File Created Date: 01 January 1601 (Video may or may not have been captured on this date, it shows the date the video was last converted.)
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oxygen, sensors, 101, testing, o2, resistance, dc, voltage, upstream, downstream, o2 sensors, oxygen sensors, bank 1 sensor 1, bank, sensor, precat, pre-cat, slow response, o2 sensor, o2 sensor replacement, o2 sensor symptoms, oxygen sensor, oxygen sensor symptoms, oxygen sensor replacement, oxygen sensor bank 1 sensor 2, oxygen sensor cleaning, oxygen sensor test, how to test oxygen sensors, p0130, p0131, p0132, p0133, p0134, p0135, how to, lambda sensors Oxygen Sensors 101 - Testing O2 Sensors for Resistance and DC Voltage](https://i.ytimg.com/vi/VNJXLS_SDUI/mqdefault.jpg)





![Retrobrite: The SECRET to Restoring Yellowed Electronics and Consoles
Full video:
How To Remove Yellowing From Plastic | 3% H2O2 | Retrobrite ULTIMATE GUIDE
https://www.youtube.com/watch?v=bJZSrRU1xt4
-
Do you want to restore your yellow plastics back to their original glory? If so, keep watching!
In this video well be restoring yellowed plastics back to their original color.
Restoring yellowed plastics is sometimes known as Retro brighting, as its usually retro items which have become discolored, and we want to brighten them up again.
Retrobriting is a hot topic of debate, but the truth is, very few people have done proper testing on this subject matter, especially observing the results over long periods of time.
I did a lot of experimenting in this video and learned a lot along the way. I have shared some of this experimenting as well as my mistakes so that we can learn from this together.
In this video well be discussing:
- Why this happens
- What types of plastics will this work on?
- How to actually restore the plastics (The process)
- Something I learned and tried along the way.
- How long will this process last?
All with a primary aim of: making the process easy and also keeping things cheap and accessible.
- Hydrogen peroxide counteracts the oxidization, because it itself is an oxidizer (an oxidizing agent!). Hydrogen peroxide is one of the best oxidizing agents known to man!
- The UV light converts the hydrogen peroxide into highly reactive hydroxyl radicals, which then decompose the problematic substances.
[UV Light Wavelengths]
UVC - 200-280nm (Shortest wavelength. Classed as dangerous rays. These dont penetrate the earths ozone layer.)
UVB - 280-315nm (Mid wavelength. Causes sunburn and skin cancer etc. Classed as burning rays.)
UVA (Longest wavelength - Reaches deep inside tissue and skin, causing aging. Classed as tanning rays)
315-350nm - Uses to cure polymers. Used in printers and some tanning equipment
350-270nm - Blacklight. For bug attraction, sun tanning. etc.
370-400nm - Blacklight blue (BLB). Glow in the dark lighting. Bank note forgery checkers.
#Retrobrite #Retrobright #Retrobrighting Retrobrite: The SECRET to Restoring Yellowed Electronics and Consoles](https://i.ytimg.com/vi/X-2bwtn1uqM/mqdefault.jpg)