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Reviews (11)
Jun 22, 2017
Just about worth it ... maybe?
1 of 1 found this helpful You'd think these would reduce chip temperatures considerably vs just the bare chip, but I think they may be more marginal than expected. Pretty sure this comment will apply to all products using similar technology i.e. very small aluminium heatsink with, supposedly, thermally conductive adhesive.
I measured a bare TO-220 power resistor (22 Ohm, with 4.7 Volts dc across it, i.e. dissipating 1 Watt. Ambient was 26C, the TO-220 on its own was 69C, TO-220 with heatsink was 59C. Bearing in mind that QFP chips bristling with pins will get heatsinking into the PCB via their pins, I imagine the temperature difference of real chips might be even less than the 10C I measured with a bare TO-220.
I should have measured the heatsink temp also to see how much of the temperature drop is across the adhesive and how much is the heatsink itself, but I didn't think of that at the time. From memory of how it felt, I'd say probaby two-thirds of the drop was due to the adhesive.
10C imrovement is definitely worth having but that was vs a very hot bare TO-220. In a typical Raspberry Pi application I would not be surprised if the advantage is only a few degrees C, hence my feeling it is quite marginal. I'll probably continue to fit them until / unless something better comes along.
Jan 15, 2020
Great, easy to use, huge value for money - all good.
1 of 1 found this helpful I'm a tech person but have rarely had to use PROM programmers (...and those were decades ago in the days when you needed a UV light for erase!). I had a couple of jobs to do needing reading & writing EEPROMs and having seen the youtube review on EEVBlog, and a friend / colleague also having mentioned this unit, I decided to dive in and give it a go.
I was up and running in minutes, and it all worked flawlessly: read the data off an old chip, saved it as a file on PC, programmed it into a new chip, and proved it worked OK in the new design ... all in 20 mins or so from opening the box. Someone has worked very hard to get this product right, and it is right. Everything should be like this, but in my experience over half of products (cheap or expensive) are absolutely not!
As to more complex funtionality I wouldn't really know, but the interface looks fairly comprehensive. Anyway for basic operations this box certainly does the job without wasting any time.
Amazing value for money too.
May 04, 2016
Fab batteries, you won't look back
1 of 1 found this helpful I have used these increasingly for everything possible over the last 6 years. They do hold charge well on the shelf, and generally are everything that a rechargeable battery should be (unlike 'rechargable' batteries put out by the big battery brands, which are generally CRAP!). I don't know how nasty the materials these use are, but they have saved me throwing loads of AAs in the trash - so one hopes they are good for the planet. I still have some from when I first bought, 6 years ago. In that time I've probably bought 50 (I sell a few on at work, as well as my own use), and out of all those only 1 or 2 seem to have lost significant capacity. Strongly recommended.