Decade Resistor Box

I got two of these Resistance Box 0-9999.9Ω Adjustable Lab Resistor Substitution Box Precision 1W Variable Knob Switch Boxes from AliExpress, but they kind of suck a bit. The resistors are only 1/4 Watt, the precision only 5% or 10%, and I had to mod it myself to replace the terminals with banana sockets.

Today I came across Build a Pro Decade Resistor Box for Cheap! PCB & 3D Print Files Included which includes all the plans necessary to make my own resistor box and with 1 Watt resistors.

I might take this on some time.

Handling Cookies is a Minefield

I read an interesting article today Handling Cookies is a Minefield. It’s basically about what characters are supported in cookies across browsers and servers.

As a rule I only use two cookies: a session cookie, which identifies the session, and a persistent browser cookie, which identifies the user and their browser.

Extra Content #17: Video and Sound Test for New Maths Homework Videos | In The Lab With 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 prepare my video cameras and recording studio so I can record the new Maths Homework section of the show!

This is just some second channel content for the archives. The video quality is quite poor in the beginning but we figure it out by the end! Stand by for the introductory video to the new section of the show which will be coming out on the main channel soon!

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!

RELIFE RL-007GA Solder LugsThis is an image of the product.notes

Let’s go shopping!

Mail Call #13: Latest Loot from Amazon and AliExpress | Learning Electronics In The Lab With 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 open my mail. I got some stuff from Amazon and AliExpress:

The book that I mention I’m doing a new book teardown for is God Created the Integers, so keep your eye out for that coming up soon on the main channel.

The cable-making video I mention is this one: Electronics Project #5: Hook Clip Test Probes to DuPont Jumpers | In The Lab With Jay Jay.

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 Universal Magnetic Ring Drill BitThis is an image of the product.

Let’s go shopping!