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  1. SparkyCal

    Distortion Pedal Redux

    I’m a novice and making all the expected errors. BUT, I have learned a lot and everybody here has been quite patient.
  2. SparkyCal

    Distortion Pedal Redux

    Hey guys. I appreciate the help and advice. I don't think I have been strung along. This is a learning. experience for me, and failure is part of that. No, I don't think I'll build only one pedal; so perhaps the schematic you posted may be a future venture. P.S. I don't know what floating...
  3. SparkyCal

    Distortion Pedal Redux

    h guys...well, ;let me finish building this one and see where we land. in the interim, Veb=nomB, if you have a basic schematic that you would recommend, please let me know. Thank-you
  4. SparkyCal

    Distortion Pedal Redux

    VenomB. I will have to get back to you, although I don’t think k I am knowledgeable enough to answer your question
  5. SparkyCal

    Distortion Pedal Redux

    I used the recommended 1nF. I did not use the 470
  6. SparkyCal

    Distortion Pedal Redux

    The circuit is working. I am pretty sure that the crackling sound is due to my wiring. Because the circuits I was doing kept failing, I began using the smallest pcb boards I have, just so I was not wasting the bigger ones. This made for very cramped components. I plan to now use a bigger...
  7. SparkyCal

    Distortion Pedal Redux

    We are getting somewhere. I wired up the circuit as described above. The good news is that I am getting sound, and distorted sound. So it looks like the op amp and the diodes are working. However, I get some sharp crackling. In other words a crackling sound will spike over top of the regular...
  8. SparkyCal

    Distortion Pedal Redux

    Cam I put the 220K resistor after the 100pF capacitor? In other words, in this order: Diode 1 Diode2 100pF capacitor 220K resistor 1K resistor off of Pin 2 run 220nF capacitor off of pin 2 run to ground
  9. SparkyCal

    Distortion Pedal Redux

    AG. Thank-you but the pin mappings are not an issue. I have always had those correctly mapped. I have not posted the new measurements, as I have yet to fix the problem. The gain pot is part of the original schematic. I can exclude it and use the 220K resistor and the 100 pf capacitor, as you...
  10. SparkyCal

    Distortion Pedal Redux

    AG- I was in a rush but I quickly put a little wire to connect pins 1 and 2 and I got a reading of 4.4v on pin 1- which is what you were expecting. So, maybe this is a good thing. I won't know for sure till later, when I have time to do it properly. Now I am thinking, I may as well go ahead and...
  11. SparkyCal

    Distortion Pedal Redux

    On the 4558D, Pin 1 is the out for the first op amp, and pin 2 is the - In. Probably a rookie mistake. In my mind, I thought- I am going to install the diodes eventually- but I failed to realize that the Out to -In thing needs to be satisfied in the interim. Will report I once I have had a...
  12. SparkyCal

    Distortion Pedal Redux

    As I think about it now, since I have not added the diodes, Pins 2 and 1 are not at all connected. Could that be the problem? Should;d they not be connected to one another?
  13. SparkyCal

    Distortion Pedal Redux

    AG: I wired the entire circuit, except for the diodes part. I used your recommended 1nF capacitor in place of the 470nF. However, I am not getting any sound whatsoever. Here are my Pin readings in volts: Pin 1. 1.5 Pin 2. 3.1 Pin 3. 4.26 Pin 4. 0 Pin 5. 1.0 Pin 6. 8.74 Pin 7. 8.74...
  14. SparkyCal

    Distortion Pedal Redux

    I'll try it. The good news is that I have yet to install that part of the circuit, so I don 't need to unsolder anything.
  15. SparkyCal

    Distortion Pedal Redux

    @AF- thanks. Yes, I do have a solder sucker. Do you have a suggestion as to the value of the replacement. The reason why I am asking is that I received an assortment of films capacitors and probably can match whatever you size you think would be better.
  16. SparkyCal

    Distortion Pedal Redux

    Just to be clear: I understand not to connect the + input of the unused opamp to the the + input of the used opamp. But when you say, connect it instead directly to the filtered voltage divider at R32, R33 and C30- how can I connect it to three places? Or are you saying, that if I connect it...
  17. SparkyCal

    Distortion Pedal Redux

    To my recollection, this is how I have always wired up dual op amps chips: Run the 1M lead to the + In on the first and second op amp Short -In from the second amp to Out of the second amp. Have I been doing this wrong? I'm very interested in your answer, as this may be something I have been...
  18. SparkyCal

    Distortion Pedal Redux

    AG, if I understand you correctly, you are suggesting I connect the + input of the used op amp according to the white arrow in the attached. if that is so, why is it not like that on the schematic? Also, please clarify what I do with the unused op amp,; I'm confused again.
  19. SparkyCal

    Distortion Pedal Redux

    AG- I don't understand. (Maybe this is a mistake I have made all along). If you look at the attached schematic, and the area I outlined in white, it suggests that R41 (the 1M resistor) runs from thre juncture between the 10K and 10K resistors, and then travels down and runs to pin 3. So, I have...
  20. SparkyCal

    Distortion Pedal Redux

    I found it post #33 here https://www.electronicspoint.com/forums/threads/im-back-sort-of.295105/page-2#post-1814638
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