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  1. rurwin

    RIP Coolfire IV TC. Suggestions for a replacement please

    My Innokin Coolfire IV TC has died and I'm now on my backup ADT50. I vape temperature-controlled, generally around 0.9 ohms and probably not much above 20 watts. (I can't bend my eyeballs around to read the tiny display while vaping, but I think it's around there.) I'm well out of the loop now...
  2. rurwin

    Beyond Lithium?

    Interesting article about the search for new battery technologies: Materials database leads to battery technologies beyond lithium
  3. rurwin

    State of Play

    I got an SXMini M-Class in May last year and I never looked back. It's a great device, so good that I never even think to carry a backup. It just works. Except now it isn't. It has developed a really odd problem and I'm going to have to send it back for a refund/replace. So now I'm thinking...
  4. rurwin

    Some movement from PayPal

    I've just received a notice that Paypal is changing its terms and conditions, and buried deep inside the changes I found this. Let's hope that this doesn't involve you telling them and them freezing your account while they sit on your application for months. But it seems like they might at...
  5. rurwin

    How to read and understand a scientific paper: a guide for non-scientists

    This is an interesting read. There are a lot of papers out there, some of them produced by ANTZ or Big Pharma seem to prove the e-cigs are dangerous, whereas others say it is much safer than cigarettes. This article discusses how a non-scientist can approach such papers critically and gain some...
  6. rurwin

    Any electronics experts here? microvolt comparator needed

    The accuracy of reasonably cheap resistance meters scares me. For example, the top-rated one of Fasttech, It reads from 0.01 to 9.99 ohms Accurate to +-0.4% 0.4% of 10 ohms is 0.04 ohms. That's OK if I'm building a 2 ohm coil, which to be fair is what I'm likely to be doing, but no use at all...
  7. rurwin

    Buying myself surprise presents

    I've got a new fun game. Every Monday I will place an order with FastTech for around $10-$20. It won't be for stuff that I need right away, or even particularly need. By the time it arrives I will have forgotten all about it and it will be a nice surprise. Order #1: A pen blowtorch and a...
  8. rurwin

    How safe is safe enough?

    Just a thought that might be useful in arguing about the safety of vaping. In the UK there are 2 million vapers[1] and 20 million people doing DIY[2]. DIY uses some dangerous tools, such as power drills and power saws, not to mention razor-sharp chisels and extension ladders. These tools and...
  9. rurwin

    18490s in a Sigelei 20 Watt?

    I find myself wondering thusly... The Sigelei 20 Watt is a nice device. It has a fixed length tube suitable for 18650s. It has an input current requirement of 10A. I have AW IMR 18490 1100mAh batteries, which have a maximum output of 16A. AW IMR 18650 2000mAh batteries would not supply enough...
  10. rurwin

    Would this work?

    My comfort zone is software. While I can build a cascaded PID control loop on a micro-controller with my eyes shut, I only know enough electronics to be dangerous. So could those with some electronics experience take a look at this and hazard a guess as to whether it would work? The idea is...
  11. rurwin

    Recommended upgrade?

    OK, so I've got a Russian 91% and my Protanks are languishing along with my geni and RDAs. On the other hand I do like having more than one atomiser on hand, so it seems I'm in the market for a new bottom-coil RBA. I want: A glass tank, or at least transparent. Access to the build without...
  12. rurwin

    Nice tee-shirt for rebuilders

    As an old Royal Mail advert once said, I saw this and thought of you. Ohmsläw Long-sleeve T-shirt - Pimoroni Make sure you read the Biography section.
  13. rurwin

    Jen Sorensen -- Corporate science deniers

    Someone gets it. http://www.alternet.org/news-amp-politics/alternet-comics-jen-sorensen-corporate-science-deniers
  14. rurwin

    Another nice atty stand

    Years and years ago I found a job lot of little granite plinths with cork on the bottom. They were going for pennies. I've still got a big bag of them. Now I need something to hold my big 510 atomisers vertical; they don't balance so well on their own. Ten minutes with an 8mm masonry drill...
  15. rurwin

    Travel and Vaping Panama

    After five months stinky-free, I'm going to be in Panama for two weeks. 1. Is the ban still in place? 2. Is it a ban on importation for sale, or is it a ban on any importation? Which Google Translate turns into [/FONT] Which is a little too mangled to make sense of. 3. What is the penalty if I...
  16. rurwin

    DIY coil. Not scared any longer, but gurgles.

    I'm not a re-coiling virgin any more. 8 turns of 0.2mm Kanthal on a blunt needle, wicked with cotton wool. 2.3 ohms Since it was so small I doubled over both ends, flavour-wick style. It works, it tastes great, but it gurgles like crazy. What should I do to stop that? The first time I blew...
  17. rurwin

    Interesting take on disposable e-cigarettes

    I found this an interesting read. It both shows how the informed non-vaping community views vaping, and raises an important concern. E-cigarettes: just more e-waste or an opportunity to educate electronics consumers? - Electronics Eetimes
  18. rurwin

    Introduction to E-Cigarettes (Blog post)

    I wrote this four-page introduction to e-cigarettes the other day. Maybe it will help someone: An Introduction to E-Cigarettes - Soronlin (External link, Completely non-commercial)