Surplus electronic parts : https://epartsconnect.com
Stock and Crypto AI Prediction : https://stocksignalslive.com

If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog
00:00 - Comissioned component artwork
https://www.bad-dog-designs.co.uk/
01:48 - 1.3GHz DIY FET probe
https://hackaday.io/project/184924-diy-13-ghz-fet-probe
https://github.com/makerprobe/FETProbe_tiny
07:53 - The uSupply makes an apperance!
09:14 - Ron Demcko sends in some goodies
https://www.youtube.com/watch?v=9V99J22aiLE
14:23 - Mysterious Patent
19:10 - USB Power Injector Crowd Supply kit
https://www.crowdsupply.com/board-outline
21:25 - Elimo Engineering electronic business card
https://elimo.io/
23:29 - Ambit Infusion Pump Teardown
30:20 - Metrawatt M2037 Multimeter Teardown
Forum: https://www.eevblog.com/forum/blog/eevblog-1525-commisioned-mailbag/
Web Site: http://www.eevblog.com
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EEVdiscover: https://www.youtube.com/eevdiscover
T-Shirts: http://teespring.com/stores/eevblog
#ElectronicsCreators #Mailbag

By YTB

25 thoughts on “Eevblog 1525 – commisioned mailbag”
  1. Avataaar/Circle Created with python_avatars MrCapacitator says:

    AD636 is not the voltage reference, that is a RMS to DC convertor

  2. Avataaar/Circle Created with python_avatars Tim Streeter says:

    The problem with using a single bf998 in a fet probe is it’s internal gain isn’t very high so source output impedance is also high, hence the voltage drop into 50R

  3. Avataaar/Circle Created with python_avatars DJ Zath says:

    did anyone notice while he was playing with that probe board, his AUDIO was modulating the input waveform??

  4. Avataaar/Circle Created with python_avatars Johnny Howard says:

    Making money is an action.keeping money is a behaviour,but "Growing money is knowledge" I figured this out a week ago.😇

  5. Avataaar/Circle Created with python_avatars W A says:

    Aach, Gott und Himmel, Dave, das ist sehr, sehr-gut, Deutsche Engineering..! Now, that you’ve ’cracked’ it open, Dave, why don’t you simply squirt some LanoTek, or De-Oxit, into the innards, of that ultra-tight-to-turn rotary function switch, and see if that improves, the ‘rota-bility’ of it..? 🙄 And if so, then you could screw it all back together, and turn it back into something, still, truly functional, that would, really, be worthwhile, sticking into a ‘vintage-corner’ pride of place, in your own pool-room…! 😉👍. PS: BBC – GMBH, ‘evolved’ into ABB, ASEA Brown Boveri, today.

  6. Avataaar/Circle Created with python_avatars DGO says:

    I'd be more impressed if the artwork's circuitry also had a practical application. Or if made of burned out components only.

  7. Avataaar/Circle Created with python_avatars henrik ostrov says:

    The bussiness card was a electronnic dice 😄.

  8. Avataaar/Circle Created with python_avatars Gunnar Freyr says:

    ohh that 1.5ghz R&S is niiiiiceee 🙂

  9. Avataaar/Circle Created with python_avatars Phillip Rhodes says:

    FWIW, it's Rah-Lee, North Carolina, not Ray-Lee, North Carolina. 👍

    Source: am from North Carolina and live in neighboring Chapel Hill, NC.

    Also, "yes,, please" to a video on the FET probe. 💯

    That Ambit pump thing looks pretty wild. I've also had shoulder surgery due to a mountain biking accident, but thankfully all I needed for pain in that case was a couple of Oxy-codone tablets ever day for about a two weeks afterwards, and then some Tylenol for about another week or so. Still, not a fun experience at all.

  10. Avataaar/Circle Created with python_avatars WacKEDmaN says:

    that Delorean circuit is a sweet idea Dave!.
    i think it would have looked even better on a black background..(with the car itself still white background, so you can see the wires n dark components easy)
    it would be even better if ya could power up the circuit! ..like flash some leds around the wheels to animate them like they are rolling, and changing to fire color…and others around the car body that would simulate lightning effect

  11. Avataaar/Circle Created with python_avatars Ara Carrano says:

    Rah Lee

  12. Avataaar/Circle Created with python_avatars stu wilson says:

    Hi Dave..What An Awesome Design Multi Meter..(I Want One !!)….Reminds Me Of Sinclair Type Innovation And Design..Happy New Year M8.

  13. Avataaar/Circle Created with python_avatars Don Matejek says:

    Cool bananas vs Cool beans…Who gets the winner, chicken dinner?

  14. Avataaar/Circle Created with python_avatars Oldskool978 says:

    feel free to donate one of your scopes when your no longer using it.. to me ofcourse, im a good dad, i deserve it 🙂

  15. Avataaar/Circle Created with python_avatars Peter Sage says:

    Dave plays with his stiff knob.

  16. Avataaar/Circle Created with python_avatars Ano Nymous says:

    maxim does make dmm chipset. the one i've looked at using before was max133/134. not sure if there's a modern equivalent for that max141.

  17. Avataaar/Circle Created with python_avatars microbuilder says:

    Typical medical stuff, super basic and cheap, yet still costs several hundred dollars lol

  18. Avataaar/Circle Created with python_avatars 1ytcommenter says:

    i am wondering how the pick&place machines pick those 008004 and how many 008004 they lose during a day.

  19. Avataaar/Circle Created with python_avatars ANT & TEC says:

    The business card from Elimo is an electronic dice (or die) by the look of it. 🎲

  20. Avataaar/Circle Created with python_avatars Gavin Groce says:

    ok this product is idiotic and daft at best … someone could take the white cap off and turn it to give what eversized dose they wanted… why?

  21. Avataaar/Circle Created with python_avatars douro20 says:

    Murata makes a 0.1mfd capacitor in 008004 size!

  22. Avataaar/Circle Created with python_avatars Jacob says:

    Now apply Kirchhoff's law to the Delorean and find an equivalent circuit

  23. Avataaar/Circle Created with python_avatars douro20 says:

    Miniatur Wunderland is the project of former German record producer Gerrit Braun. It houses the world's largest model railway, and Gerrit's aim is to have enormously detailed dioramas representing every major city and tourist spot across the entire planet. It has so far cost 37 million Euro.

  24. Avataaar/Circle Created with python_avatars Gavin Groce says:

    it looks like it was picking up your voice!

  25. Avataaar/Circle Created with python_avatars SeanBZA says:

    Thinking that delay line is based on the set and reset of ferrite cores, with you having a string of cores, with each pulse of current of opposite polarity flipping the cores to the alternate state, basing the current strength of the flip on the sum of the drive and the signal output of the previous stage. Thus the cores all will flip state on each clock, just that feeding in a pulse at the beginning will make that first core set to the opposite state, and this then propagates down the line of cores, and at the output the pulse is xored with the clock pulse phase, and gives a pulse out, delayed by the number of cores, and with a resolution equal to the clock pulse.

    BBC is Brown Boveri Corporation, bought over by Metrawatt, and before that it was Asea Brown Boveri, and originally Brown Boveri. Big manufacurer of electrical switchgear and industrial control and measurement equipment, and a lot of it still is in use after decades of service.

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