Man. So. Today, this happened. I was watching a new video from Adrian Black and his EEVBlog multimeter failed:
I have been saving my pennies and planning to buy an EEVBlog 121GW Multimeter because a lot of the makers around the interwebs have one as a nod to Dave Jones over on the EEVBlog, but that’s just so embarrassing that it’s failing. Of all the equipment you have you need to trust your test equipment the most and this is… well, just sad I guess.
Today I was pleased to discover this: DreamSourceLab DSLogic U3Pro32 USB-Based Logic Analyzer with 1GHz Sampling Rate, 2Gbits Memory, USB 3.0 Interface, 32 Channels.
There are some notes from the manufacturer over here: DSLogic Series USB-based Logic Analyzer.
It’s a logic analyzer which can operate at 1GHz that’s within my price range. I’m not rushing off to buy this thing, but it is certainly on my list.
The only other thing I have seen that compares to this logic analyzer is this RIGOL DS70304/DS70504– Digital Oscilloscope 3GHz/5GHz 4 Channel 20GSa/s 2Gpts 1000000 wfms/s which is roughly two orders of magnitude more expensive.
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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!
Thanks very much for watching! And please remember to hit like and subscribe!
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
aToolTour Black Hexagon Deburring Drill Bit notes |
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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 and you can find more information about this video on this show’s homepage which is here.
You can support this channel on Patreon: patreon.com/JohnElliotV
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!
Thanks very much for watching! And please remember to hit like and subscribe!
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yum Cha L-shaped Screwdriver notes |
Let’s go shopping!
This post is part of my video blog and you can find more information about this video on this show’s homepage which is here.
You can support this channel on Patreon: patreon.com/JohnElliotV
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!
Thanks very much for watching! And please remember to hit like and subscribe!
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yum Cha Magnetic Claw Pickup Tool notes |
Let’s go shopping!
This post is part of my video blog and you can find more information about this video on this show’s homepage which is here.
You can support this channel on Patreon: patreon.com/JohnElliotV
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!
Thanks very much for watching! And please remember to hit like and subscribe!
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
ZKETECH EBD-A20H Electronic Load notes |
Let’s go shopping!
Today I enjoyed watching 6 Horribly Common PCB Design Mistakes and the follow-up video Design Mistakes You Must Avoid on Your New Electronic Product.
In the first video I learned about AppCAD Design Assistant which is a free tool which boasts a broad bunch of features (and, particularly, it can help you design an antenna on your PCB):
I haven’t used AppCAD yet, but I will check it out soon.
Here’s me making a USB cable: Making a USB breakout cable for intercepting USB signal data. This is 2nd channel content, watch at your peril. <3
Man. I would really like to own a scope which could measure signals at 1GHz or more. Like this RIGOL DS70504 which can do 5GHz. The only problem is the price tag: AU$52,928.99. :(