In this video I mod a pair of resistor boxes by installing banana plug terminals in place of the lug terminals they came with and then I give a quick demo of them.

In the demo we connect them in both series and parallel and then measure their resistance with my Fluke multimeter.

I mention this video from Dave Jones on the EEVblog: EEVblog #1020 – Is A $7 LCR / Component Tester Any Good? which is where I found out about the RS-201W resistor box which he has. I searched on eBay for RS-201W but what I found for over US$1,000 (inc shipping) was way too expensive: IET Labs RS-201W Wide Range Precision Resistance Substituter.

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 11 in 1 USB-C Hub USB Hub

Let’s go shopping!

Mail Call #10: Thanks Craig! Also loot from AliExpress | In The Lab With Jay Jay

Posted on 2024-09-25 [Wednesday] by Jay Jay

This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

In this video I receive Engineer’s Mini Notebook Volume II – Science and Communication Circuits & Projects all the way from the USA from my friend (and mentor (and reader (and viewer (and patron (and Lisp hacker))))) Craig. Thanks Craig! <3

I mention that the October 2024 edition of Silicon Chip magazine is out.

I mention that I recently got my symbol keyboard working on Linux! Pretty happy about that! These are the extra keys that I have at my workstation now: ° ± § λ Δ Σ Π Ω ε µ π θ

I also get a bunch of stuff from AliExpress, including:

And yes, despite confusion, I did get three lots of two different kinds of hard brushes, and yes, I did end up saying the wrong thing in the video! Can’t take me anywhere.

Oh, and as I mention in the video I am from a beautiful part of the world known as the Blue Mountains. It’s pretty hot here today!

In the end my collection of Arduino boards includes:

Thanks very much for watching! And please remember to hit like and subscribe! :)

Wozniak Solder Lugs

notes

Let’s go shopping!

Old Book Teardown #10: Digital Systems: Hardware Organization and Design (1973) | In The Lab

Posted on 2024-09-24 [Tuesday] by Jay Jay

This post is part of my video blog and you can find more information about this video over here.

You can support this channel on Patreon: patreon.com/JohnElliotV

Silly Job Title: Component Wrangler

In this video I take a look at Digital Systems: Hardware Organization and Design by Fredrick J. Hill and Gerald R. Peterson published in 1973:

archive.org
Amazon USA (3rd Edition, 1991)
Wiley (3rd Edition, 1991)

Here is the laundry list of links to things which came up during this video, including a few duplicates:

Thanks very much for watching! And please remember to hit like and subscribe! :)

Rigol PLA2216 Compatible Logic Probe

notes

Let’s go shopping!

Baker clamp

Posted on 2024-09-24 [Tuesday] by Jay Jay

Today I learned about the Baker clamp. It’s a circuit to help speed up transistor switching time. I learned about it over on Diode-transistor logic § Speed improvement where it said it was developed by Richard H. Baker who described it in his 1956 technical report.