JLCPCB Prototype for $2(Any Color): https://jlcpcb.com
Revision 2 output mixer/amplifier board for my vocoder project. Full build and some test recordings.
Digital Sound Voice Recorder 8GB Rechargeable Steel Dictaphone MP3 Player Record https://ebay.us/dKYpMa
SHORT 50cm YELLOW RED WHITE Triple 3x RCA PHONO Composite AV Cable Lead OFC 0.5m https://ebay.us/ZaWK17
15 PCS 4 PIN JST XH Female Connector on Both Side with 300MM Wire 1007 26 AWG https://ebay.us/7O10Pp

By Julian

Youtuber, shed dweller, solar charge controller aficionado

12 thoughts on “New pcbs from jlcpcb: mixer amplifier full build test”
  1. Avataaar/Circle Created with python_avatars SAZA一乇一MAUT says:

    I can't find potentiometer on easyeda. Can u reply with its parts numer?

  2. Avataaar/Circle Created with python_avatars Franko Walker says:

    It would be nice to see a comparison between yours and the original 1980 layout of boards, pots and sockets. Were the originals point to point wireing?

  3. Avataaar/Circle Created with python_avatars Philip Collins says:

    741 Op amp !! – I thought they were obsolete ??

  4. Avataaar/Circle Created with python_avatars Heiko van der Laar says:

    Why are you calling them version instead of revision?

  5. Avataaar/Circle Created with python_avatars Chilledoutpaul says:

    Hi Julian, Have you got a budget to work too? lol

  6. Avataaar/Circle Created with python_avatars Toller Tüp says:

    May i ask you where you got those tiny cute 3.5mm Jack connectors? I'm building my own super awesome Amplifier and i need them for audio inputs.

  7. Avataaar/Circle Created with python_avatars Tom George says:

    Not sure if you are using Windows OS, but <CTRL> <PRTSCR> captures and saves screen image to clipboard for pasting.

  8. Avataaar/Circle Created with python_avatars Eddie says:

    Interesting project. I like how you're trying to make it compact. If done only on protoboard, this thing would be massive!

  9. Avataaar/Circle Created with python_avatars Brian Oldford says:

    What colour would you use if you had to go to a version 4 PCB?

  10. Avataaar/Circle Created with python_avatars DJ_Cthulhu says:

    Re. pedantic pot alignment. Insert steel rule into grooves on pot shafts for perfect alignment. Hope that made sense. 🤓

  11. Avataaar/Circle Created with python_avatars Jens Schröder says:

    why not power the OUTPUT MIXER AMPLIFIER V2 with the ribbon cable?

  12. Avataaar/Circle Created with python_avatars Ogma Φ DJ & Musician Φ says:

    Interesting.

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