I stuck a reminder about the resistor colour coding scheme on a bit of dowel I’ve installed to support the shelf on the wall behind my bench.
Resistor colour codes
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Monthly Archives: September 2025
Haasoscope Pro: Open-Everything 2 GHz USB Oscilloscope
I have a new post on Hackaday: Haasoscope Pro: Open-Everything 2 GHz USB Oscilloscope.
Old Book Teardown #14: Encyclopedia of Electronic Circuits (1985) | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Tome Pumper. I am the Tome Pumper!
In this video we take a look inside the Encyclopedia of Electronic Circuits.
The pages which have circuits I thought were interesting and will consider building are: 358, 415, 420, 520, and 597.
Here are the pages I scanned while working through the book:
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 3pcs Universal Metal Spudgers |
Let’s go shopping!
The Electronic Storage Tank | Project 2/30 | Maxitronix 30in1 | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Tech Lead. I am the Tech Lead!
In this video we do the 2nd project from the Maxitronix 30in1 Electronics Project Lab Kit: The Electronic Storage Tank.
We use the Rigol MSO5074 Mixed Signal Oscilloscope to measure the voltage across the capacitor.
We use the UNI-T UTi260B Thermal Imager to check for thermal response (there was none).
We use the Riden RD6006 Bench Power Supply to provide 3V to our test circuit.
We use the EEVblog BM2257 Digital Multimeter to measure voltage across the capacitor.
We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to measure the forward voltage of our LED.
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! :)
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!
Rigol PLA2216 Compatible Logic Probe notes |
Let’s go shopping!
Mail Call #44: Components, Tacks, Vacuum, Filters, Wrenches, Precision Tools, and More!
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Bolt Boy. I am the Bolt Boy!
In this video we take a look at what has arrived in the mail from Amazon, eBay, AliExpress and Farnell (element14).
- ATMEGA328P-PU 8 Bit MCU, AVR ATmega Family ATmega328 Series Microcontrollers, AVR, 20 MHz, 32 KB, 28 Pins, DIP
- 50PCS 1W Metal film resistor 1% 1R ~ 1M 2R 10R 22R 47R 100R 330R 1K 4.7K 10K 22K 47K 100K 470K 1 10 22 47 100 330 ohm resistance (5.1k, 22k, 51k)
- 100PCS 1/4W 1% Metal Film Resistor 100R 220R 1K 1.5K 2.2K 4.7K 10K 22K 47K 100K 100 220 1K5 2K2 4K7 Ohm Resistance Ibuw 1R~22M (10M)
- 500Pcs Drawing Pins, BetterJonny Silver Push Pins 9.5mm Iron Thumb Tacks Head Nail Pin Doornail for Office or DIY
- 29000PA Cordless Hand Held Mini Portable Car Auto Home Wireless Vacuum Cleaner (green)
- Ratcheting Combination Wrench Set, 6-23mm Metric Flex Head Ratcheting Wrench, Chrome Vanadium Steel Spanner with Bag (16pcs)
- 10 Pcs Handheld Vacuum Cleaner Filter Hepa LY002X LY002DBL LY003H Non woven vacuum cleaner filter element (QP4792)
- Welding Wire Fixture Adjustable Suction Bracket Welding Table Clamp For Motherboard Soldering Welding Locator Soldering Tools (3pcs)
- 8-Piece Blackhead Remover Kit – Stainless Steel Blemish & Acne Extraction Tools – Professional Pimple Popper Set for All Skin (Silvery 8 pcs)
- ANENG BT-171 Multifunctional Battery Testers 12V Auto Repair Industry Detection with LED Reverse Display Screen Electrician Tool (BT-171 Black)
- 140-840pcs U Shape Solderless Breadboard Jumper Cable Wire Kit 14 Types Lengths for PCB Bread Board Prototyping Circuits Boards (840PCS)
- 300/960pcs Ceramic Capacitors Kit 2pF-0.1uF Electronic Components Package Capacitor Assorted Samples Diy Kit (300pcs-without box)
- SMD Advanced Full Patch Welding Practice Board Electronic Components SMT Skills Training PCB Welding Practice Kit (A and B)
- 30PCS PCB Board Kit SOP24 SOP8 SOP14 SOP16 SOP20 SOP28 SMD Turn To DIP Adapter Converter Plate SOP 8 14 16 20 24 28 Ibuw
- Sandpaper Roll Emery Cloth Sanding Abrasive Sheets 80 120 180 240 600 800Grit Sand Paper Sanding Abrasive Sheets (400 Grit, 600 Grit)
- Ratcheting Crimping Tool Set For Dupont JST MOLEX Open Barrel,Dupont Molex JST TE Terminals & EPC PCIE SATA Pins SN-58B (SN-58B)
- DC7-40V Battery Level Indicator 12V 24V 36V 48V Acid/Lipo Lithium Battery Capacity Board Voltage Battery Charging Tester (green)
- 1 Sets SG90 MG90s 9g Steering Gear Pan Tilt Two Axis PTZ Ultrasonic Aerial Model Camera Mount FPV Camera Support Accessories (PTZ with 2 servo)
- 400PCS capacitor kit Aluminum Electrolytic SMD condensadores electrolíticos 1uF~1000uF 6.3V-50V 24Value with box kit de reparac
- 960Pcs/lot Ceramic capacitor Assortment Kit 2PF-0.1UF 50V Ceramic capacitors set 24value*40pcs diy Electronic capacitors 20% (24Value Kits 960Pcs)
- 9IMOD Screwdriver Storage Rack Holder Multifunctional Organizer RC Repair Tools Kit Desktop Stand for Hex Cross Screw Driver (Color: Silver)
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 Mini High-Precision Electronic Scale notes |
Let’s go shopping!
The Microtronic Phoenix Computer System
I have a new post on Hackaday: The Microtronic Phoenix Computer System.
Learning the Art of Electronics: Fig-1N.29: DVM reading departs from ideal; we can infer Rin-DVM | In The Lab
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Systems Architect. I am the Systems Architect!
In this video we keep on working through Learning the Art of Electronics chapter 1N DC Circuits. Today’s circuits are from Figure 1N.25: Set of similar voltage dividers: same Vthev, differing Rthev and Fig-1N.29: DVM reading departs from ideal; we can infer Rin-DVM.
We use the Tenma 72-10505 Bench Power Supply for a 20V power supply.
We use the EEVblog BM2257 Digital Multimeter as our DVM for measuring voltage.
We use the Sharp EL-546L Scientific Calculator to crunch some numbers.
We use the Multicomp Pro MP701033 Resistor Decade Box to provide the resistances used in our circuits.
We use the WilliamKlein Music Stand to hold our textbook.
We use the Carpenter Mechanical Pencil to make our notes.
We use the Hakko CHP 3C-SA Precision Tweezers for precision work.
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! :)
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!
OULLX NSS-681HDMI-RJ45 Network Cable Tester notes |
Let’s go shopping!
Unboxing #29: Unboxing Pro’sKit MT-2207-C Analog VOM Handheld Multimeter | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Earth Grounder. I am the Earth Grounder!
In this video we take our new Pro’sKit MT-2207-C Analog VOM Handheld Multimeter out of its box. The other bit of Pro’sKit equipment I have is the Pro’sKit SS-331H Desoldering Pump. The dodgy analog multimeter I have is this one: Yum Cha MF-110A Analog VOM Handheld Multimeter.
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 Orange Telescopic Magnetic Pickup Tool |
Let’s go shopping!
Unboxing #28: Unboxing FNIRSI FNB58 USB Tester Voltmeter Ammeter | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video.
You can support this channel on Patreon: patreon.com/JohnElliotV
Silly Job Title: Maker of Videos. I am the Maker of Videos!
In this video we take our new FNIRSI FNB58 Type-C USB Cable Tester out of its box.
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!
Mr Drill Tap Wrench Set |
Let’s go shopping!
How To Make A Simple MOSFET Tester
I have a new post on Hackaday: How To Make A Simple MOSFET Tester.