Support Julian's Postbag videos via Patreon: https://www.patreon.com/julian256?ty=h
Karaoke Singing DJ Professional Handheld Wireless Cordless Wired Microphone Mic http://www.ebay.com/itm/-/400551702993
DIY USB Boost Single Turn Dual Power Module Linear Regulators Multiple Output Power Kit from Banggood
http://bit.ly/1mhFrxS
Banggood flash deals: http://bit.ly/1NX0NaS
Vintage E27 Edison Bulb LED Lamp Retro Filament Light 85V-265V 2W 4W 6W 8W White http://www.ebay.com/itm/-/301845807536

By Julian

Youtuber, shed dweller, solar charge controller aficionado

11 thoughts on “Julian’s postbag: #57 – microphone, multi psu, 8w led bulb”
  1. Avataaar/Circle Created with python_avatars Educated Manholecover by Richard Tata says:

    Clean?!! It has not common mode choke on the output.

  2. Avataaar/Circle Created with python_avatars Panko says:

    knock knock knockin' on heaven storessssss

  3. Avataaar/Circle Created with python_avatars n3qxc says:

    You're now up to 122 on Patreon…. I'll up my monthly donations when my business picks up…. great videos all the time……thank you!

  4. Avataaar/Circle Created with python_avatars Anvilshock says:

    2-pin jack. Professional. Yeah right. China shit. Why do you buy this crap??

  5. Avataaar/Circle Created with python_avatars tengelgeer says:

    I don't think screwing on the back interferes with the RF. I think the mic just picks up the vibrations of screwing on the cap…

  6. Avataaar/Circle Created with python_avatars Trevor Coard says:

    Hi Julian. Have just assembled the multi-voltage PSU which appears to be working fine, after correcting the polarity of one of the two SMD diodes (SS34) which I had reversed. I suggest you check very carefully the polarity of these before adding. There is a (white) band at one end of the SS34 (+ve) denoting the orientation to match the board markings, however, on the two SS34's that I have, the bands are extremely faint. A good magnifying glass is strongly recommended.
    Good luck with the build, and I look forward to the PSU video.

  7. Avataaar/Circle Created with python_avatars reggiebacci says:

    The incandescent appears to flicker more than the LED. Never would have called that one. Last LED bulb I had gave me a headache.

  8. Avataaar/Circle Created with python_avatars GateKommand says:

    I notice the Baygen Freeplay radio Julian – it's a long time since I have seen one of those!

  9. Avataaar/Circle Created with python_avatars John Undozer says:

    I just got this Banggood PSU, it works but it is noisy as hell, the output has voltage spikes up to 1V. That in effect makes a horribly noisy wave on the function generator kit.

  10. Avataaar/Circle Created with python_avatars Andrew Waters says:

    Unfortunately cheap led filament bulbs don't seem to last very long yet, expect to replace the bulbs every 3 months unless you buy quality versions.I suspect the component ratings are just on the verge of being acceptable and fail prematurely!

  11. Avataaar/Circle Created with python_avatars Gameboygenius says:

    Single turn probably means non-isolated, ie referring to the single turn in the inductors as opposed to a transformer.

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