I’m always impressed with how much @ElectrArc240 knows about power electronics.
Category Archives: Design
The Genius of Old Tools
I wish I could make database systems like this!
Learning the Art of Electronics: 1L.4.3 10 mA Ammeter | In The Lab With Jay Jay
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This post is part of my video blog and you can find more information about this video.
Silly Job Title: Electron Herder. I am the Electron Herder!
In this video we continue to work our way through Learning the Art of Electronics. In this video we continue with 1L Lab: DC Circuits and make a 10 mA ammeter with our meter movement.
We use the 5V LED we made last weekend to test our ammeter.
We use the Riden RD6006 Bench Power Supply to power our test circuit.
We use the EEVblog BM2257 Digital Multimeter to measure the resistance of our 100 µA meter movement.
We use the Multicomp Pro MP701033 Resistor Decade Box for our 23Ω shunt resistor.
We use the Carpenter Mechanical Pencil to take notes.
We use the Kaisi S-160 45x30cm Repair Mat as our workspace.
Thanks very much for watching! And please remember to hit like and subscribe! :)
p.s. if you’d like to see the making of the 5V LED circuit we used to test our ammeter, that is here: Electronics Project #25: Variable Brightness LED for Testing Ammeter | In The Lab With Jay Jay.
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!
DAZZLEEX 20pcs Precision Drill Bits![]() |
Let’s go shopping!
How to choose a capacitor
In this video Paul Carlson from Mr Carlson’s Lab tests three different types of capacitor to demonstrate their properties. You need to be careful in audio applications because capacitors can behave like microphones.
Picking low noise resistors
Hans Rosenberg runs us through what we should know about resistor noise and how to avoid it. The bottom line is to avoid carbon composition, thick film, carbon film, and metal oxide film; and prefer thin film, metal film, wirewound (watch inductance), and bulk metal foil (expensive but best).
Today I added wirewound to my spell check.
Speech Synthesis with the SP0256-AL2
This build uses a W65C265S microcontroller and an old SP0256-AL2 speech synthesizer integrated circuit to add voice output to a circuit.
Fume extractor
Here’s a fun build:
Framework laptop
Here’s a good run down of what’s in a Framework laptop:
Navel gazing about programming with AI
Via Lobsters today: I Started Programming When I Was 7. I’m 50 Now, and the Thing I Loved Has Changed.
