What's in Dave's Mailbag?
Send to:
PO Box 7949
Baulkham Hills BC
Baulkham Hills NSW 2153
AUSTRALIA

NOTE: The PO Box isn't big. A4 letter size x maybe 100mm high. otherwise I gotta line up at the counter and collect.

Hi, it's time for the Eev blog mail bag and this turned up in the PO box. It's from Elector Electronics I don't know what's in here I don't remember uh, ordering anything from them. Anyway, if you want to send me stuff there it is. PE Box 7949 Bam! Ms New South Wales 2153 Austral e no I think that's an A.

Anyway, let's open it up and check out what's inside. Interesting in: get the Swiss Army knife out. Okay, what do we got in here? Oh, it's a book. It's a book.

mastering the I Squad Sea Bus. Yeah. Excellent. Um, okay.

why let's have a look here. Master in the I Squad Seabs and EPS something? What? Okay, excellent. Didn't order anything but uh, there you go. Commissioned by: Vincent Vincent Vincent Hy Thanks Vincent No idea what's in here here.

let's have a look. Oh I got Pcbs Tada Elector Electronics and it, yeah, there it is. Vincent Hy So Vincent author of the book has sent it to me. Excellent thanks Vincent I'll check it out.

And these Pcbs are obviously uh, for example projects in the book. We've got some uh, real time clocks there. We've got LCD keypad. we got a scope trigger e squ Pro from Pwm leads.

uh, what's that? It looks like some sort of analog to digital converter. maybe? um, and we've got whole other board. Shame, they don't actually give you the parts to build it up, but uh, sure, you can buy the uh by the parts. seven Seg displays, all that sort of thing.

Uh Port expander by the looks of it and 12bit deck ADC pots. oh digital pots, all sorts of stuff. Neat. And obviously the whole idea is to have this uh I Squ C system and build up all these boards.

Oh yeah, it's um, yeah, they've got definitely got the uh, they've got the individual Pcbs here, so the whole thing looks like a step by step uh guide to building up these boards and uh, running through all the they've got the schematics and then running through all the I squ. all the commands and stuff like that to control all these Iqu C devices. it actually looks very well done I Like it. It's a step-by-step example.

So if you're after a step-by-step guide to learning all about I Squ C. Historical background of I Squ C. It's got bills and materials Parts references all that sort of stuff. There you go.

it's looks like it's part of this uh lab works with an X get it? uh, concept straight from the lab to your brain. It's a collection of books, each handling a particular Topic in the field of electronics and this one is the I Squar C bus and it does look, uh, pretty good. It uh, goes through all the details of uh, how the bus works and uh, it's it. It's well done, it's well laid out I Really, really like it.

At first glance it's uh, all the timing, stuff and things like that. It's uh, looks like Vincent's put a lot of work into this and it's really well laid out. Yeah, I like it. If you really want to know about Iqu, SE looks like the go and another thing I got from Germany from uh Tilman Bowman So thanks Tman is one of these.
Nixie from Mr Nixie It's one of these Nixie tube thermometer. uh kits. very cool. let's have a look at it.

They've got nice, uh, plastic base here. they've obviously, uh, probably you know, laser cut, acrylic, uh, base on the thing and a whole bunch of whole bunch of parts. and yep, there's tons of them. and there's the PCB in there.

Looks pretty good. Let's take this out and there you go. They got a yellow, um, uh, solder mask on that which is rather unusual. kind of looks good though.

kind of like it. and yeah, I won't bore you with all the parts, but um, apparently this is like not microcontroller based. It's all passive. Uh, it's an entirely passive based design.

Ah, here's the um. the thermometer index thing which the Nixie tube goes in and they've got laser cut on the back there. Yep. on the back side, they've got um, laser engraved on uh, their Fahrenheit and Celsius don't need Fahrenheit what do you need that for? hopeless scale? but uh, the idea is that I think this lights up from the bottom.

it sits in the acrylic base like that and lights up. And here is our Nixie tube. Oh look at that bar graph Nixie tube display very nice I Love like it. It's um X I don't think they're brand new I think they're like Surplus Russian ones although they could be actually brand new.

but I think they're like old stock or something like that. so Russian uh Nixie tube bar graph display real Cold War stuff. Brilliant I Love it. so thanks Tilman that's excellent.

I'm going to enjoy building that one up and uh, uh, I'll have to show you that when it's finished and that's what it looks like when it's built up supposedly. and and uh, I think it lights up blue or something like that. from the bottom, there's some LEDs and it should look pretty funky I like it. Okay, so that's it.

That's the mail bag. If you want to send me stuff, there's the address and uh I'll maybe if I'll If Everyone likes this I'll turn it into a uh regular segment where I just open stuff cuz I know a lot of people want to send me stuff for review and uh, things like that and you know I can't review everything. but maybe I can just open it up and uh, give you a little plug or something like that if you've got some sort of product. So there you go if you do send it away.

Thanks! Catch you next time.

Avatar photo

By YTB

24 thoughts on “Eevblog #251 – mailbag”
  1. Avataaar/Circle Created with python_avatars Aisha Love says:

    I really wish nixie stuff was cheaper. I want a clock so bad, actually a thermometer with 2 digits would be much better but the only one available is a kit with missing parts and it's expensive.

  2. Avataaar/Circle Created with python_avatars 🦊 U+1F98A says:

    "AUSTRALIë"

  3. Avataaar/Circle Created with python_avatars David Tourville says:

    Hello
    I really enjoy your multimeter reviews. If you could I like to see a review of an Amprobe Am 570.

    Thanks

  4. Avataaar/Circle Created with python_avatars privee prive says:

    This item has been send from holland

  5. Avataaar/Circle Created with python_avatars antiekeradio says:

    crap, i knew it.. country of origin was Netherlands, not Germany! So in fact the adress is spelled completely correct.. the Dutch call Australia "Australië".. and have done so for a while now 🙂

  6. Avataaar/Circle Created with python_avatars antiekeradio says:

    Australiën would be the correct German spelling for Australia. Obviously the address country is especially important for the mail service in the country of origin, so while it may be neater to write the country name in the "destination spelling" it is definitely not a fail to do it in the "country of origin spelling". Between countries using latin characters it's a rather moot point but if you take for example arabic or asian countries.. you need to spell locally or you'll get it back undeliverd

  7. Avataaar/Circle Created with python_avatars tbbw says:

    Have you built the nixie tube yet?
    Would be fun to see it in action 🙂

  8. Avataaar/Circle Created with python_avatars riktw says:

    In case you still don't know about the i2C book is, you can find vincept himpe in your forum with the name "Free_electron"

  9. Avataaar/Circle Created with python_avatars johnfranks says:

    i just got some of those tubes from russia a few weeks ago. IN9 and IN13 i believe. they are surprisingly easy to drive and look amazing.

  10. Avataaar/Circle Created with python_avatars Brian Stuckey says:

    You've got something cool to look forward to – the Nixie Therm is a cool gadget.

  11. Avataaar/Circle Created with python_avatars DMStern says:

    With the local climate couldn't you just color in the thermometer with a permanent marker?

  12. Avataaar/Circle Created with python_avatars rng8891 says:

    What do you need Fahrenheit for??? Why I outta…

    Truthfully though, good video. I'm still watching the power supply project videos, it's pretty cool.

  13. Avataaar/Circle Created with python_avatars jfernandmy says:

    @EEVblog @Aaron16 just remember what Dave says : "dont turn it on, take it apart" 😛

  14. Avataaar/Circle Created with python_avatars SeaMonkey says:

    More mail please. I get excited even though it's not my mail 🙂

  15. Avataaar/Circle Created with python_avatars criscros7 says:

    @ForViewingOnly
    Lifespan (typically of the more "recent" types) can be rated up to 200,000+ hrs (the first types were rated to last only a small fraction of that). Cycling of the numerals (like in clocks) and driving the tubes below their max. specs (i.e. at somewhat reduced brightness) is said to be of great benefit to the lifespan.
    Sorry, I don't know of the tubes are more delicate when they're on. I'm not a Nixie expert.

  16. Avataaar/Circle Created with python_avatars rainbowsalads says:

    cool idea for a segment.

  17. Avataaar/Circle Created with python_avatars rainbowsalads says:

    lol, i flip through books backwards too. : )

  18. Avataaar/Circle Created with python_avatars EEVblog says:

    @SigEpBlue Unless I get inundated with stuff (*grin*), no need to give priority, I'll give time to all stuff that comes in each week.

  19. Avataaar/Circle Created with python_avatars ms767210 says:

    @JohnCrow6666 I thought it looked well layed out like Dave said. I'm tempted to buy it but they want another 40 bucks for the boards and then you gotta populate them.
    Is there enough information to breadboard the circuits or set them on perfboard? I really don't want to buy the boards.

  20. Avataaar/Circle Created with python_avatars Mr Lyon says:

    I love the treatment the mail company gave that poor box!

  21. Avataaar/Circle Created with python_avatars AntiProtonBoy says:

    Make it into a regular series provided you build the stuff! 😛

  22. Avataaar/Circle Created with python_avatars ForViewingOnly says:

    @criscros7 Thanks for the info. Any idea about the durability and lifespan of Nixie tubes? Are they similar to valves in guitar amplifiers, in that they are delicate when on and hot, and more robust when off and cold?

  23. Avataaar/Circle Created with python_avatars criscros7 says:

    @ForViewingOnly
    80–250V, typically 170V, at a few mA. 30mm high numerals as used in clocks are <1W per piece.

  24. Avataaar/Circle Created with python_avatars 38911bytefree says:

    Can I send a car to you ?.

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