Voltlog #120 – Mini DC Power Supply Review

So I guess a gadget like this is worth 10$ because you could replace that linear breadboard power supply with a more efficient one, which will give you voltage and current display as well as adjustable output.

Here are some images I took during the teardown of the mini power supply:

 

 

 

 

 

 

 

Checkout this power supply from the links below:

60W Electronic Dummy Load Battery Tester:

Voltlog #119 – NEW 150W Dummy Load Review

Today we are taking a look at yet another electronic load. I found this one on Aliexpress, I think it’s a rather new model so let’s see what it can do.

Here are links to the 150W and the 180W version of this dummy load:

Voltlog #108 – 150W Electronic Load Review

I never expected this electronic dummy load to be so bad because I kinda liked the way it’s built and how it looks. Unfortunately it’s way out of spec on the measurements and also has some firmware bugs.

150W Electronic Load Buying Links:

60W Electronic Load Buying Links:

And here a short user manual that I wrote: PDF 

Voltlog #51- InTheMail

Here is a list of the items shown in this video:

  • Led 1w amber
  • 3W cool/warm white LED
  • 6W COB LED
  • 16×2 LCD HD44780
  • CREE XPE-R3 LED Mini Penlight Flashlight AAA
  • Green High Power Burning Laser Pointer
  • Green Laser 473nm Protection Glasses
  • HT7333 LDO Regulator
  • 2xAAA Battery holder
  • AAA 1.2V NiMH Rechargeable Battery
  • Terminal Block Connectors
  • 20 Pcs Gold Plated 4mm Banana Plug
  • Silicone Rubber Fan Mounts
  • 16mm Rotary Knobs
  • Neodymium Countersunk Hole Magnets
  • Dental Mirror
  • New T-Handle Tap Wrench Capacity M3-M6

You can find links to all these products in the video description.

Voltlog #27 – Transistor Tester Short Functionality Review

In this episode I am testing the various menus on the Graphical LCD Transistor/Component Tester purchased from banggood. This gadget does more than just measure and identify components, it can also measure frequency, it has built-in frequency generator as well as a 10-bit pwm generator with adjustable duty cycle.

Links to the products shown in this video:

 

Voltlog #17 – 5 inch LCD TFT Monitor With 2 CH Analog Input

In this video I do a quick review of a 5 inch LCD TFT Monitor With 2 CH Analog Input. This module was sent to me free of charge for review by gearbest.com. The module is based on the MST703 video decoder and if you want to know more about this chip check it’s datasheet in the links from the video description.

 

VoltLog #7 – In The Mail

A list of the items I show on this InTheMail video:
2.4 inch 320×240 px TFT display module based on the ILI9341 lcd controller, complete with touchscreen, uSD card slot, 128Mbit flash, independent font chip and the required power circuitry.

ESP8266 modules (3 different variations), a small solar panel, waterproof enclosure and Li-ion battery cells. uSD card holder thing. 13W LED 5050 E27 lightbulb. Breadboad + breadboard power supply + jumper cables. 0-30V 0-2A Adjustable lab power supply kit, unassembled. A bunch of components I ordered from Comet Electronics.