JLCPCB Prototype for $2 (Any Color): https://jlcpcb.com
A precision full-wave peak detector circuit for driving the LM3915.

By Julian

Youtuber, shed dweller, solar charge controller aficionado

16 thoughts on “New yellow pcbs from jlcpcb – peak detect circuit”
  1. Avataaar/Circle Created with python_avatars Kenn Mossman says:

    No schematic? ……..thx

  2. Avataaar/Circle Created with python_avatars Kenn Mossman says:

    OMG get over the 'alignment'……….who gives a f&ck

  3. Avataaar/Circle Created with python_avatars Kenn Mossman says:

    IRKS me that the LEDs are not touching…..WHY leave a gap between them?????????????????????????????????

  4. Avataaar/Circle Created with python_avatars Jyv Ben says:

    to see parts of a datasheet for your own use is ok + you are promoting their hardware,
    you are not a company that makes an electronic component and
    copies the original datasheet + then pretend it is home-made.

  5. Avataaar/Circle Created with python_avatars Mario Almeida says:

    What is the reason you have the male header on the black PCB facing downward instead of upward which make installing the yellow PCab much easier

  6. Avataaar/Circle Created with python_avatars Stoojinator says:

    This project is the longest running project known to man. Rebuilding the Great Wall of China will take less time than for Julian to finish his Vocoder ๐Ÿ™‚

  7. Avataaar/Circle Created with python_avatars Peter Wooldridge says:

    ALAN PARSONS PROJECT…a bit of a fav of mine. Ain't got a clue what you're doing but notwithstanding that enjoyed it thoroughly….Cheer J

  8. Avataaar/Circle Created with python_avatars Jerric says:

    Hello Julian. I'm quite new to this sort of thing so i have question about capacitors and batteries. Is it possible to charge a capacitor with a lipo battery? If not please explain why not.

  9. Avataaar/Circle Created with python_avatars Thomas W says:

    Blue for revision four!

  10. Avataaar/Circle Created with python_avatars o says:

    These videos are great for helping me get off to sleep, keep up the good work.

  11. Avataaar/Circle Created with python_avatars nico nico says:

    nice design thought with the mounting there !
    maybe you could use a 1.6mm H-profile to fix the pcb between the others.

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

    I picked up one of those crimping tools that works on those connectors, but most of the time, I simply crimp the one around the insulation first, then put the wire in a hemostat to hold it upright and with a sharp little needle type soldering iron tip that I usually use for SMD connections, I put just a drop of solder on the connection and wire, whilst heating the other side of the connector. I have had great luck with this method both with those little connectors and others such as the dupont type as well. So long as the spring connector is above where you solder gravity seems to protect the connection and the solder flows down

  13. Avataaar/Circle Created with python_avatars BสŸษชแด›แด›แด‡ส€Bแดœษข says:

    Why are you surprised that the signal didn't peak into the red? The producer's / engineer's job is to make sure that doesn't happen except for very fast transients! Looks to me as if your VU meters are spot on.

  14. Avataaar/Circle Created with python_avatars Comment 200 says:

    Reminds me of a project I did for a TV production truck. Needed additional meters for the audio board. Company wouldn't spend $1,500 for a meter bridge, so I requestioned a bunch of DYI meter kits as "replacement parts" for $250. Installed trim pots on the inputs for calibration.

  15. Avataaar/Circle Created with python_avatars TheDIYGuy999 says:

    Yes, you finally labelled your connectors ๐Ÿ‘

  16. Avataaar/Circle Created with python_avatars What The Function says:

    No rev 4 allowed

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