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  1. just changed the 10k to 110R and now its working,...

    just changed the 10k to 110R and now its working, gonna change my new boards to 5v but for now 3.3 works

    regarding software controlled trs control, it would be awesome, i read in the stackechange...
  2. Just wanted to know if it was safe to try this,...

    Just wanted to know if it was safe to try this, changing the power to 5volts? And change r114 from 10k to 110R? Don't wanna fry (another) teensy :)
  3. Just tried to change the 10k resistor to a 4.7k...

    Just tried to change the 10k resistor to a 4.7k one, keeping the power cuircuit at 3.3v and it does not seem to work

    like this: 23268
  4. OK, but then i could probably use my original...

    OK, but then i could probably use my original schematic, but changing it like this?
    23267
    or should i keep 3.3v on the power protection?

    The reason i sleected the MC74VHC1GT04 was because i...
  5. 23247 like this maybe?

    23247 like this maybe?
  6. maybe a 74AHCT240 will do the trick, or...

    maybe a 74AHCT240 will do the trick, or MC74VHC1GT04?
  7. Ye, ok thx. midi stuff don't recognize any input,...

    Ye, ok thx. midi stuff don't recognize any input, so i guess this circuit don't work with 3.3v
  8. That sounds good, are there any 74hct that can...

    That sounds good, are there any 74hct that can buffer, level shift and invert the signal?
  9. I tested the "plug in and out issue" with another...

    I tested the "plug in and out issue" with another device(elektron machinedrum), and it does not seem to care have many times i plug the cable in and out , so i blaming the device(squarp pyramid)
  10. midi in with 3.5mm connector overvoltage protection cuircuit

    Hi, i found a nice schematic for a over-voltage protection circuit when using 3.5mm connectors for midi, as users might plug cv and gate(+-12v) in accidentally

    The schematic/discussion can be...
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