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Recent content by Rorut

  1. R

    Trying to get two sound circuits work together

    Perfect so just power pin 8 on the TL072 from the 7809 and Im fine?
  2. R

    Trying to get two sound circuits work together

    I will get a 7809 and try that. Thanks a lot! Is there any other IC that can replace TL072 with lower input voltage? Else there should not be any problems having these circuits together powered with the same 12V supply. Could it be any level issues, like the delay circuit getting to high input?
  3. R

    Trying to get two sound circuits work together

    Im using a 9V supply and also tested a 12V. Is it the 78L05 that has an output of 5V? Can I just remove that voltage regulator and use 9-12V ? And that maybe could remove som of the distortion. powering it with 12V i can measure 4.9V on the output from the TL072. Read that PT2399 should be...
  4. R

    Trying to get two sound circuits work together

    I got two pcbs DIY. - one is a circuit that makedifferent sound effects. I built it and it works great. I wanted to add delay to it and got a delay based on PT2399. as it is now i think the sound gets distorted when the sound effects is connected to the delay board. even if I have pots not...
  5. R

    Feed AC circuit with DC?

    I found the PCB layout for the DC version. Tried to clone it in diptrace
  6. R

    Feed AC circuit with DC?

    Curious how they manage to do the circuit feeded with a single 12v supply (attached pcb) when the IC need dual supply. Green arrow pointing att red cable measures 12V.
  7. R

    Feed AC circuit with DC?

    Thank you for keeping me motivated! Would be a nice and needed feature. But Using two external supplys feels a bit cumbersome. Wonder if its hard to trace the Single rail version of the send/return PCB that I posted an image of in an earlier post It has almost the same amounts of components...
  8. R

    Feed AC circuit with DC?

    Thanks! Probably best to give up this idea. A bit more difficult to do for me than I first thought
  9. R

    Feed AC circuit with DC?

    Would this work?
  10. R

    Feed AC circuit with DC?

    Thanks! The drawing in #22 is just an overall sketch/block diagram. No schematic
  11. R

    Feed AC circuit with DC?

    Correct thinking here?
  12. R

    Feed AC circuit with DC?

    I think I did not explain this clearly. I dont have the mixer above with the D701. I just want the circuit I first posted inside this (http://rasteri.com/w/images/b/be/PMC-05PRO.pdf) unit that is powered with an 15V DC supply, the internal PS in that just makes 15VDC to 12DC. This is what my...
  13. R

    Feed AC circuit with DC?

    Thanks a lot. I understand more but I still need it to run from the 15V DC supply (or a 20V external DC supply) that is used for the intended mixer. I need to learn how to do the dual rail/split thing with positive and negative from a DC source that you explained about earlier. Is it called...
  14. R

    Feed AC circuit with DC?

    Here is the pcb for a model with 12DC, but can not find any schematic for it though. Same functionality just one earlier version. Using same ICs
  15. R

    Feed AC circuit with DC?

    Ve Pretty poorly but Im learning and to reach a goal not understanding exactly everything but learning something is fine for me :)
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