Huge thanks again to the wonderful people who support my channel via Patreon.
https://www.patreon.com/julian256
Arduino Pro Mini Identification - 5V, 3.3V, 8MHz or 16MHz
https://youtu.be/3eUEaKcPs0M
eBay Links:
85C1 DC0-10A Analog Panel AMP Current Testing Meter Ammeter Gauge White Tool https://www.ebay.com/itm/-/172613778954
5 x DPDT Red Light Illuminated Round Rocker press Switch 3 Position 9 Terminals #Generic https://www.ebay.com/itm/-/232481293072
Atmega328 Board 5V 14 Pins Pincompatible For Arduino Pro Mini New https://www.ebay.com/itm/-/401171901022
Note: mains voltage from 12 volt supply via inverter 🙂

By Julian

Youtuber, shed dweller, solar charge controller aficionado

13 thoughts on “Julian’s postbag: #107 – meters, micros and mains mayhem”
  1. Avataaar/Circle Created with python_avatars Andraz Novak says:

    u are an absolute madlad

  2. Avataaar/Circle Created with python_avatars Jerry Ericsson says:

    I did indeed get a kick out of the screwdriver power supply! Have to keep that in mind if I ever do another class for beginners in electronic theory. We used to think it was fun to have one troop hold a pair of field wire while having another crank the handle on an old TA312, made what little hair they had stand on end for a few seconds, ah for the good old days in the US Army!

  3. Avataaar/Circle Created with python_avatars Jerry Ericsson says:

    Happy to see you picked up that pro mini multi pin, I have built many projects with the little fellows, so very nice not to have to try and make your own 5v and grnd pins to hook up all the goodies. I order these by the 5 or 10 when I run short, they fit almost anywhere in small project boxes as well.

  4. Avataaar/Circle Created with python_avatars felix cat says:

    Not being able to change the shunt in those amp meters is a big fail.

  5. Avataaar/Circle Created with python_avatars Life, Take 2 says:

    Julian makes some very interesting videos, but I have to agree that using this SHITTY method of connecting 240VAC to the load was STUPID, even for an experienced technician (especially for an experienced technician?). You don't need to buy a $60 QuickTest to do this safely, just get some of the EXCELLENT German-made Wago Lever-Nuts. They're cheap, can handle high current and high voltage, and are secure and very easy to use.
    That said, I'd STILL like to buy a QuickTest, if only "Because Big Clive".
    Perhaps the best way to handle this sort of thing on YouTube is to CLEARLY explain why it's fucking stupid and dangerous, then do it anyway (I'm looking at you, Mehdi Sadaghdar…)

  6. Avataaar/Circle Created with python_avatars Paul Campbell says:

    I love the mains test rig. Attitude points 🙂

  7. Avataaar/Circle Created with python_avatars Sod Almighty says:

    This is NOT how to demonstrate high voltage on Youtube. In the privacy of your own workshop, sure, be as insane as you like. But on a public video? To people who are so inexperienced that they actually find an ILLUMINATED GODDAMN SWITCH exciting? Shit, Julian, you literally have people GIVING YOU FREE MONEY. Buy some proper equipment you tight bastard!

  8. Avataaar/Circle Created with python_avatars John Mann says:

    anything stuck into the end of a iec lead other than an iec socket is a massive fail ,considering the wealth of knowledge you clearly have julian and the amount of people who may be watching your videos to learn how to do things properly i dont think i could have been more shocked at seeing this blatentley dangerous method of working …

  9. Avataaar/Circle Created with python_avatars Graham Uk says:

    Honestly these replies from safety numpties.

    My advice to you – stay inside, don’t talk to anyone, don’t read anything, don’t watch anything , don’t DO anything – you could die!!!!!

    I say anyone can make a video on YouTube and do what the hell THEY like and if it’s dangerous and YOU or SOMEONE ELSE copies it and gets hurt or dies, tough!

    Have some responsibility for gods sake.

  10. Avataaar/Circle Created with python_avatars bokkenka says:

    Clive would have cut the meter open for our education. 🙂

  11. Avataaar/Circle Created with python_avatars 48snapper says:

    For the first time ever, your video is getting a dislike from me. Messing around with 230/ 240 volts like that is incredibly irresponsible. A few idiots/ children will copy you. Please use proper test equipment.

  12. Avataaar/Circle Created with python_avatars Axel Lambert says:

    I agree, you shouldn't show the section with the 2 metallic screwdrivers on youtube!!

  13. Avataaar/Circle Created with python_avatars George Ale says:

    I didnt got the last "up here"with the middle finger but ok ..Just joking

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