Welcome to a new Voltlog, it’s November and that means the biggest shopping event happening in Asia is coming up, I’m talking about the 11th of november. There are some numbers published for last years event and it seems they registered more than 30 billion in 24 hours in sales, yes you heard right, billions. So it’s a very big event with nice discounts and opportunities for makers like us to get some new gear. That’s why I prepared this video which will be published 1-2 days before the event so you can get some ideas of stuff that you could purchase. I assembled a list, these are products that I’ve tested and used myself which I think are good value for money and a nice addition to any hobbyist lab.
Tag: Gopher
Voltlog #255 – Gophert NPS-1601 Review (possibly the best power supply in this price range)
Welcome to a new Voltlog, those who have been with me since the beginning of this channel, may know the first video I ever released, Voltlog #1 was a review of a switch mode bench power supply from Gopher Technology. It was the CPS-3205C and it was a great little unit, it has served me well over the years and I still have it.
At that time I complained about the fact that the unit has the output jacks on the back which is not really convenient for bench use. There were also other issues mentioned while measuring the performance of the power supply, I will link that video on screen if you want to watch it but the video, audio and editing quality are lower than what you’re seeing today.
Gophert made some improvements to the original design and have now released a newer version of that power supply, it has a new model number it’s NPS-1601 but it’s the same range of 0-32V and 0-5A. There are other models with different ranges but this is what would correspond to the CPS3205 I reviewed years ago.
They have made a bunch of changes on the front panel, the most important one is they moved the output jacks to the front panel so now it’s easier to connect the output of this power supply but they are still not standard spacing so you can’t connect one of these adapters with banana jacks. They have also redesigned the front panel completely, they are still using 7 segment displays but now they also have a wattage display which can be switched on temporarily in place of the amps display, you press the watts button and it will show watts measurement for about 3 seconds before reverting to amps display.
The switch for A/V adjustment is now tactile instead of a sliding switch but the rest has stayed the same. I like this redesigned front panel I just wished they used a lighter color for the text, because for example there are some markings which are barely visible next to the LEDs.
Here is a set of pictures I captured during the teardown:
Voltlog #49 – Gopher CPS-3205C Output Noise
In the review video, due to an error in my measurement setup I got erroneous values for the output noise. In this video I am re-doing those measurements for the output noise.
Voltlog #48 – New 2016 Gopher CPS-3205C Review & Teardown
This is the new 2016 revision of the Gopher CPS-3205C. Gopher has addressed some of the issues I found in the old revision and sent me their latest for review. You will see a teardown as well as various tests performed on this power supply.
Voltlog #18 – InTheMail: 7020 LED Strip, STM32, STM8, Wireless Remote Dimmer
In this epissode I receive: A set of rigid 7020 white LED strips, Wireless Remote LED Dimmer, Maple Mini STM32, STM8 dev board, spade connectors and some Logitech Z2300 ALPS potentiometers.