I’ve been busy working away on the website for In The Lab With Jay Jay: https://www.jj5.net/in-the-lab/
The bit that took the most time was getting the affiliate links for equipment working: https://www.jj5.net/in-the-lab/equipment.php
I’ve been busy working away on the website for In The Lab With Jay Jay: https://www.jj5.net/in-the-lab/
The bit that took the most time was getting the affiliate links for equipment working: https://www.jj5.net/in-the-lab/equipment.php
This post is part of my video blog: In The Lab With Jay Jay.
In this video I do the third Maxitronix 10in1 Electronic Project Lab project: Diode Experiment.
When I looked at the resistor on the bottom I thought it was red – brown – black – gold which would have been 21Ω but I think I misread brown and that was actually purple which would be 27Ω which stacks better with the two measurements I made both of which said 27Ω.
In the video we examine the forward voltage of our germanium diode and get various readings. Typically a germanium diode should be around 0.3V versus silicon diodes which are usually around 0.7V.
The component testers we use are these:
On the FNIRSI component tester the Ir is the “reverse current”, also known as the “leakage current”. This is the small amount of current which flows through the diode when it is reverse biased (that is, basically, connected the wrong way around).
I asked ChatGPT a few questions about diodes and their specifications which you can read here: Germanium Diode Forward Voltage if you’re at all interested in such things. Of course you should be doubly suspicious of anything you read on the internet. :)
The really amazing learning for me in this experiment was how hot the germanium diode got versus the lamp, which was so surprising. Just goes to show how good an idea it is to actually do experiments and measure things! The thermal imager we used was the UNI-T UTi260B.
Also I think I’m coming around to the view that an oscilloscope is a pretty poor voltmeter. My oscilloscope is an MSO5074 70MHz 4 Channel MIXED SIGNAL OSCILLOSCOPE and I love it but I think in future I will limit my use of the oscilloscope to situations where I’m actually dealing with some sort of oscillator. I think simple digital multimeters would have been better test equipment to use for the kinds of readings I was trying to take in this experiment.
I hope you enjoy the video. Stay tuned for the upcoming projects. If you’re interested in seeing them don’t forget to subscribe!
Also, if you’re interested in getting any of these Maxitronix kits yourself the best place I know to look is on eBay. Let me know if you find them somewhere else!
Here is a table of products I use which may appear in my video with affiliate links to vendors if you would like to buy. The link given here won’t necessarily have the best price so please do shop around to see if you can find a better deal. If you have thoughts or questions please feel free to let me know. Let’s go shopping!
Some different perspectives on what the tech job scene is like these days, and then some other random things. Honestly I am not sure what has happened in my feed today.
Thanks to Craig for referring me to Brian Haidet’s AlphaPhoenix channel.
I found the following four videos on the AlphaPhoenix channel explaining various aspects of the propagation of electricity, which goes some way to explaining how the high impedance headphone might work in my 10in1 2/10 project.
While watching the videos I discovered that Brian’s oscilloscope is a Siglent SDS1104X-E (100 MHz) Oscilloscope, a pretty nice looking bit of kit!
This post is part of my video blog: In The Lab With Jay Jay.
In this video I do the second Maxitronix 10in1 Electronic Project Lab project: Morse Code Oscillator.
In this video when I’m talking about the tuning capacitor I say that 0.001uF is 1,000 picofarads, but of course it is 1,000 nanofarads; I would have put a correction into the video but I didn’t notice the error until I had already published it.
There was some follow up discussion about topics raised in this video over here: propagation of electricity.
Stay tuned for the upcoming projects. If you’re interested in seeing them don’t forget to subscribe!
Also, if you’re interested in getting any of these Maxitronix kits yourself the best place I know to look is on eBay. Let me know if you find them somewhere else!
This post is part of my video blog: In The Lab With Jay Jay.
In this video I do the first the Maxitronix 10in1 Electronic Project Lab project: Morse Code By Light.
Stay tuned for the upcoming projects. If you’re interested in seeing them don’t forget to subscribe!
Also, if you’re interested in getting any of these Maxitronix kits yourself the best place I know to look is on eBay. Let me know if you find them somewhere else!
This post is part of my video blog: In The Lab With Jay Jay.
In this video I introduce the Maxitronix 10in1 Electronic Project Lab. This kit has 10 projects which we will be working through in future videos.
I did check out the URL listed on the manual: www.maxitronix.com — but there’s nothing there any more, it is simply listed as for sale. I tried looking in archive.org but I only found some default content from the hosting provider.
Stay tuned for the upcoming projects. If you’re interested in seeing them don’t forget to subscribe!
Also, if you’re interested in getting any of these Maxitronix kits yourself the best place I know to look is on eBay. Let me know if you find them somewhere else!
This post is part of my video blog: In The Lab With Jay Jay.
In this video I announce the new “Xin1” feature of the show. In the Xin1 feature we will work through the various Maxitronix electronic project labs that I own. We will be working through the following project kits, one after the other:
As I mention in the video each time I start a new project kit I will do an introductory video to cover the front matter in the manual and to give an overview of the projects in the kit. Then I will make one video for every project in the kit. The project videos will be in this form:
And starting today the plan is to have a new video on the channel every day. So let’s see how I go with that! :)
If you’re interested in getting any of these Maxitronix kits yourself the best place I know to look is on eBay. Let me know if you find them somewhere else!