Today I read Orders of Magnitude, Logarithmic Scales, and Decibels from Ultimate Electronics.
Orders of Magnitude, Logarithmic Scales, and Decibels
Reply
Category Archives: Testing
Mail Call #64: Loot from AliExpress & Amazon, ELP-U3 USB Camera, Spanners and More! | In The Lab
You can support this channel: patreon.com/JohnElliotV
This post is part of my video blog and you can find more information about this video.
Silly Job Title: Cable Commander. I am the Cable Commander!
In this video we take a look at what has arrived in the mail from AliExpress and Amazon:
- Zastic! Laminated Periodic Table of Elements Chart – 9″x12″ Chemistry Reference Poster Chart Cheat Sheet – Study Guide for Highschool, College, SAT/AP
- M5Stack Official Cap LoRa 1262 for Cardputer Adv (SX1262,ATGM336H)
- Universal Antenna Adapter Cable Fakra-Z Male To SMA Male Plug For GSM GPS DAB TV Antennas RG174 Cable
- 2PCS SMA To TV IEC Connector DVB-TV Antenna Adapter AP Test Head TV Plug SMA Female to TV Male RF Coaxial Connector KEBEIS (SMA Female to TV F)
- 2PCS SMA To TV IEC Connector DVB-TV Antenna Adapter AP Test Head TV Plug SMA Female to TV Male RF Coaxial Connector KEBEIS (SMA Male to TV F)
- 2PCS SMA To TV IEC Connector DVB-TV Antenna Adapter AP Test Head TV Plug SMA Female to TV Male RF Coaxial Connector KEBEIS (SMA Female to TV M)
- RG174 Cable IEC PAL DVB-T to SMA / F TV Male Plug & Female Jack RF Jumper Pigtail Adapter 20cm (SMAJ-TVJ, 50cm)
- RG174 Cable IEC PAL DVB-T to SMA / F TV Male Plug & Female Jack RF Jumper Pigtail Adapter 20cm (SMAJ-TVK, 50cm)
- RG174 Cable IEC PAL DVB-T to SMA / F TV Male Plug & Female Jack RF Jumper Pigtail Adapter 20cm (SMAK-TVJ, 100cm)
- RG174 Cable IEC PAL DVB-T to SMA / F TV Male Plug & Female Jack RF Jumper Pigtail Adapter 20cm (SMAK-TVK, 100cm)
- RG174 Cable IEC PAL DVB-T to SMA / F TV Male Plug & Female Jack RF Jumper Pigtail Adapter 20cm (SMAJ-TVKW, 100cm)
- 3mm Ultra-thin Open Box Dual-purpose Wrench Set 6-24mm Stainless Steel Spanner Metric Ratcheting Combination Wrench Kit with Bag (6-24mm 12pcs kit)
- https://www.amazon.com.au/dp/1009632884 2nd Edition
- 5PCS 6-pin WH148 Duplex Potentiometers B 1K 2K 5K 10K 20K 50K 100K 500K Dual Potentiometer Shaft Length 15 L15MM (500K Ohm)
- 5PCS 6-pin WH148 Duplex Potentiometers B 1K 2K 5K 10K 20K 50K 100K 500K Dual Potentiometer Shaft Length 15 L15MM (50K Ohm)
- 5PCS 6-pin WH148 Duplex Potentiometers B 1K 2K 5K 10K 20K 50K 100K 500K Dual Potentiometer Shaft Length 15 L15MM (5K Ohm)
- 5PCS 6-pin WH148 Duplex Potentiometers B 1K 2K 5K 10K 20K 50K 100K 500K Dual Potentiometer Shaft Length 15 L15MM (100K Ohm)
- 5PCS 6-pin WH148 Duplex Potentiometers B 1K 2K 5K 10K 20K 50K 100K 500K Dual Potentiometer Shaft Length 15 L15MM (10K Ohm)
- 5PCS 6-pin WH148 Duplex Potentiometers B 1K 2K 5K 10K 20K 50K 100K 500K Dual Potentiometer Shaft Length 15 L15MM (1K Ohm)
- ELP New 4K 60FPS Webcam USB 3.0 IMX678 Low Light Streaming Camera with 10X Zoom 5-50mm Lens for PC CCTV Video Conference AI (5-50mm CS Lens)
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!
SUNSHINE Hard Brush Set notes |
Let’s go shopping!
How to measure motor speed electronically
I enjoyed this one from Electronic Wizard.
Learning the Art of Electronics: Fig-2N.4 Constant Current Ramp | In The Lab With Jay Jay
You can support this channel: patreon.com/JohnElliotV
This post is part of my video blog and you can find more information about this video.
Silly Job Title: Circuit Breaker. I am the Circuit Breaker!
In this video we continue working through Learning the Art of Electronics. Today we build the circuit from Fig-2N.4 which is a manually switched constant current ramp.
The constant current sources we’re using are these: LT3092 Adjustable Precision Current Source Module, 200mA / 500mA Adjustable Constant Current Source Module, LED Driver.
The other constant current sources I have but that we aren’t using today are these: LT3092 Adjustable Constant Current Source Module 200mA Continuous Adjustable Constant Current Output, Sensor Drive Power Supply.
The box I put everything is the 82x52x35mm-Black box from here: 70/100mm DIY Electrical Enclosure Box Electronic Project Case White Black Grey Instrument Storage Junction Controller Box.
The spanners I mention that I purchased recently are these: 3mm Ultra-thin Open Box Dual-purpose Wrench Set 6-24mm Stainless Steel Spanner Metric Ratcheting Combination Wrench Kit with Bag (6-24mm 12pcs kit).
We use the Rigol MSO5074 Mixed Signal Oscilloscope to investigate Vout.
We use the METCAL PS-900 Soldering Station for soldering.
We use the AiXun H314 Hot Air Gun for heat shrink.
We use the MUIN Solder Fume Extractor to clear the air.
We use the Yizhan Digital Microscope for close ups.
We use two Riden RD6006 Bench Power Supplies to provide positive and negative power.
We use the EEVblog BM2257 Digital Multimeter for continuity testing.
We use the Brother P-Touch D210 Label Maker for labeling.
We use the nmsafety Nitrile Gloves for hand protection.
We use the ENGINEER PA-09 or PA-21 Crimping Tool for crimping.
We use the Hakko CHP 3C-SA Precision Tweezers for tweezering.
We use the Plato Model 170 Wire Cutter to cut, cut, cut.
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!
DTBD Wrench |
Let’s go shopping!
Unboxing #36: Unboxing the MESTEK EMF02R EMF Meter | Learning Electronics In The Lab With Jay Jay
You can support this channel: patreon.com/JohnElliotV
This post is part of my video blog and you can find more information about this video.
Silly Job Title: Energy Elicitor. I am the Energy Elicitor!
In this video we take a look at my new MESTEK EMF meter which I purchased recently from AliExpress: Mestek Emf Meter Electromagnetic Field Radiation Detector Rechargeable Counter Emission Dosimeter for Mobile Phone and Computer. I got the EMF02R model.
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 Crowbar |
Let’s go shopping!
Impedance Explained
Learning the Art of Electronics: Constant Current BJT Circuit from AoE | In The Lab With Jay Jay
You can support this channel: patreon.com/JohnElliotV
This post is part of my video blog and you can find more information about this video.
Silly Job Title: Switch Sleuth. I am the Switch Sleuth!
In this video we continue working through Learning the Art of Electronics. Today we don’t do any course work, rather we do two exercises from the text, AoE ex 2.9 and 2.10 on page 86, and make a BJT-based current source as described in AoE Figure 2.32 on page 87.
These are the results I got as I varied the load resistance:
| RL Ω | VL V | IL µA | VBE V |
| 1 | 0.06 | 0.0 | -0.746 |
| 10 | 0.18 | 0.0 | -0.745 |
| 100 | 1.21 | 0.0 | -0.740 |
| 1k | 5.41 | 0.0 | -0.699 |
| 10k | 7.54 | 4.9 | 1.145 |
| 100k | 7.79 | 4.8 | 1.598 |
| 1M | 7.88 | 4.9 | 1.637 |
| 10M | 7.96 | 5.0 | 1.641 |
My notes are here:
We use the METCAL PS-900 Soldering Station for soldering.
We use the AiXun H314 Hot Air Gun for heat shrink.
We use the MUIN Solder Fume Extractor for fume extraction.
We use the Riden RD6006 Bench Power Supply for 10 V power input.
We use the EEVblog BM2257 Digital Multimeter to take measurements.
We use the Fluke 17B+ Digital Multimeter to take measurements.
We use the Peak Electronic Design Atlas DCA75 Pro Semiconductor Analyzer to check our NPN transistor pin out.
We use the Sharp EL-546L Scientific Calculator to crunch some numbers.
We use the ElectroCookie PCB Prototype Solderable Breadboard to build our circuits on.
We use the Multicomp Pro MP701033 Resistor Decade Box as a variable load resistor.
We use the Hakko CHP 3C-SA Precision Tweezers for tweezering.
We use the Plato Model 170 Wire Cutter to trim component leads.
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. today I added AoE to my spell check.
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 Stainless Steel Spudger |
Let’s go shopping!
Unboxing #35: Unboxing the HP Prime CAS Graphing Calculator | In The Lab With Jay Jay
You can support this channel: patreon.com/JohnElliotV
This post is part of my video blog and you can find more information about this video.
Silly Job Title: Spark Specialist. I am the Spark Specialist!
In this video we unbox our HP Prime graphing calculator.
Thanks very much for watching! And please remember to hit like and subscribe! :)
Update: there was some confusion when I made this video. I ordered the G2 model but when it arrived I couldn’t find any G2 branding on my device so I mistakenly thought I had been sent a G1 instead. In fact I had not. I did in fact receive a G2, it’s just that the G2 branding was very subtle and I missed it. The only indication seems to be a small “G2” on the back under the HP logo. Also I heard that the G2 model came with a USB-C connection, but that is wrong. My G2 has a USB-Micro connection, which I believe is standard.
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!
MECHANIC UV Curing Light notes |
Let’s go shopping!
Mail Call #62: Loot from AliExpress, Amazon, and eBay | In The Lab With Jay Jay
You can support this channel: patreon.com/JohnElliotV
This post is part of my video blog and you can find more information about this video.
Silly Job Title: Phase Phaser. I am the Phase Phaser!
In this video we take a look at what arrived in the mail:
- SMA female to BNC male brass adapter for Baofeng Radio UV-5R UV-5RA UV-5RB UV-5RC UV-5RD Antenna Adapters bnc to sma (BNC-SMA KJ NO.4, 2pcs; BNC-SMA KK NO.1, 5pcs; BNC-SMA KJ NO.2, 5pcs)
- Pentel Ain Stein Lead Refill 0.7mm 2B Grade, 12 Leads Per Tube, Box of 12 Tubes, Total 144 Leads (C277S-2B)
- Epic Dental Spearmint Xylitol Gum 50-Pieces
- Epic Dental Fresh Fruit Xylitol Gum 50-Pieces
- 72 Pcs Space Moon Bookmarks – Celestial Double Sided Bookmarks for Kids, Teens & Students – Bulk Book Marks for Reading, Moon Party Favors
- FNIRSI HRM-10 Battery Voltage Internal Resistance Tester 18650 High-precision AC Acid Lithium Lead Car Battery Capacitor Tester (Color: HRM-10 Set) (User manual)
- FNIRSI SG-003A SG-004A Multifunctional Signal Generator4-20mA PT100 Thermocouple Resistance Pressure Transmitter (Color: NEW SG-003A) (See also FNIRSI SG-002 Signal Generator) (User manual)
- Mestek Emf Meter Electromagnetic Field Radiation Detector Rechargeable Counter Emission Dosimeter for Mobile Phone and Computer (Color: EMF02R) (User manual)
- Casio fx-991EX Scientific Calculator
- TI-36X Pro Scientific Calculator
- Casio fx-CP400 CAS Graphing Calculator
- HP Prime CAS Graphing Calculator
- Axiometa Genesis Mini Starter Kit
- LCR-AR1 Transistor Tester Multimeter Diode Transistor Capacitance Meter Resistance LCR ESR Meter, Multifunctional Tester (User manual)
- 1/5pcs Bendable Spring Drawstring Threader Clip Pants Hoodies Elastic Band Efficient Rope Threading Tool DIY Sewing Accessories
- X8 Brushless Turbo Jet Fan Blower 150000RPM Powerful Electric Air Blower Vacuum Dust Cleaner Portable Dust Cleaner Violent Fan
- New Mini TEF6686 All Band Radio Receiver 2.4 inch Touch Screen LW/MW/SW/FM/AM Portable Shortwave Radios Receiver (User manual)
- 0V-3500V IGBT Voltage Transistor Tester Diode MOS Triode LED Voltage Capability MOV Withstanding Voltage Tester (User manual)
- 10A Relay Receiver Mini Module Remote Control f 433Mhz Universal Gate Remote Control Switch DC 12V or Gate LED Garage Door (Color: 1 Switch 2 Remote)
- Precision Signal Generator PWM Current Voltage 0-20mA 4-20mA 0-10V Source Simulator 0-50V 50mA Measuring Meter Calibrator (Color: type-c 1) (User manual)
- Battery Capacity Checker Digital RC Voltage Tester Cell Meter for LiPo LiFe Li Ion NiMH NiCd Rechargeable Pack (User manual)
- FNIRSI ERD-10 4-IN-1 Electromagnetic Radiation Detector, Electric & Magnetic Field Strength, RF Power, Temperature Monitor
Thanks very much for watching! And please remember to hit like and subscribe! :)
p.s. today I added BNC, BNC-SMA, Xylitol, html, Thermocouple, CAS, LCR, Brushless, IGBT, Triode, PWM, LiPo, LiFe/em>, NiMH, and NiCd to my spell check.
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 Half Round Nose and Half Groove Pliers |
Let’s go shopping!
CH341A Programmer
Update: there is conflicting information on the interwebs regarding the “fix” for this programmer. Some people say you should do it. Other people say it isn’t necessary. You decide!
Today I watched You Need This $10 Flash Programmer, But It Needs This Fix Before You Use It! and I picked up a few from AliExpress:
- CH341A Programmer Adapter + SOIC8 Adapter+ SOP8 Clip With Cable+1.8V Adapter CH341A EEPROM Flash BIOS USB Programmer ZIF Adapter
- CH341A Programmer adapter+SOIC8 adapter+ SOP8 clip with cable+1.8V adapter CH341A EEPROM Flash BIOS USB programmer ZIF adapter
- CH341A/B Programmer Module DIY KIT 24 25 Series EEPROM Flash BIOS USB + SOIC8 SOP8 Test Clip For EEPROM 93CXX / 25CXX / 24CXX
The video references thingino.com, which has firmware for cameras with Ingenic SoC.