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  1. SparkyCal

    Just When I Thought it was Going to Be Easy

    When you say replace the drive knob with sensitivity threshold and limit knobs, which is is the drive knob? the 500K one? and are these sensitivity threshold and limits knobs, special kind of knobs?
  2. SparkyCal

    Just When I Thought it was Going to Be Easy

    Thank-you but when you say:you might try amending the NFB loop with a jfet connected to an envelope follower so the distortion can be controlled by pick attack., it is like talking Mandarin to me. I need it is simpler terms ;-)
  3. SparkyCal

    Just When I Thought it was Going to Be Easy

    Thanks guys. It turns out that my mistake is the result of two things: Soldering in the early hours of the morning when the brain is tired Cramming on too small a PCB I am doing a rebuild and will; report back.
  4. SparkyCal

    Just When I Thought it was Going to Be Easy

    I have 50 of them, so it’s not a big deal.
  5. SparkyCal

    Just When I Thought it was Going to Be Easy

    As many of you know, I successfully built an overdrive pedal using the 4558D double op amp IC, with the help of the kind folks here. My journey can be found on this thread: https://www.electronicspoint.com/forums/threads/back-to-the-breadboard.295296/ The schematics I used can be found here...
  6. SparkyCal

    The Latest Build

    Wow. Enough to keep me busy, that’s for sure. Thanks Bertus P.S. @VB. Thanks for the link to the vst plug in. I will check it out. Hope it runs on. Mac though because I left the PC world years ago
  7. SparkyCal

    The Latest Build

    Bertus: I must thank you again for this link. At first, I was wondering what I can possibly learn from it. But because you provided it, I thought it was worth reading. Having read it, I decided to change the tip of my soldering iron, and my soldering iron. I was using those sharp pointed...
  8. SparkyCal

    Back to the Breadboard

    Hey VB. I just wanted to thank you for posting that drawing. I followed it, and it worked! Thanks so much!
  9. SparkyCal

    Back to the Breadboard

    Thanks for this VB. I have printed it out and will give it a go next time I'm at it.
  10. SparkyCal

    Back to the Breadboard

    Thanks. I have the rest of the circuit built, including the input and output jack and all three pots
  11. SparkyCal

    Back to the Breadboard

    Hmmm...two remaning issues. 1. My focus has been on how to get the DC barrel and Battery clip working together so as to power the LED in the right way, depending on whether the DC barrel is plugged in or not. But, how do I make sure that the circuit itself gets the 9 Volts it needs? In other...
  12. SparkyCal

    Back to the Breadboard

    Despite the explanations, I was getting confused. So......I forced myself to think this through. Then I breadboarded my thoughts and came up with the attached diagram which I believe works. I verified that the barrel and the battery clip were sending power, when one of them was disengaged and...
  13. SparkyCal

    Back to the Breadboard

    Call me an idiot, but I still can't get this. I have attached a drawing of my latest attempt, based on my understanding of VB's instructions. When I wire it this way, the LED is lit immediately when I plug the battery in. Clicking the stomp switch on or off has no effect on the LED. When I...
  14. SparkyCal

    Back to the Breadboard

    Thanks VB
  15. SparkyCal

    Back to the Breadboard

    I'm confused. VB, or someone- can you guys look at my drawing and draw on it, as to what I have to correct. I breadboarded this, but obviously, I am not getting it. Thank-you
  16. SparkyCal

    Back to the Breadboard

    Ok….when you referred to the switch, I thought you meant the stomp box switch,
  17. SparkyCal

    Back to the Breadboard

    @AG- I changed the resistor to a 270R and you're right, it's better. @VB- I am not sure if I understood correctly. You wrote: basically, delete the lead from the switch lug to 4.7 and you should be alright On my drawing, the negative end of the LED, goes to the upper middle lug on the stomp...
  18. SparkyCal

    Back to the Breadboard

    Thanks guys!
  19. SparkyCal

    Back to the Breadboard

    Hmm. How do I get the led powered irrespective of whether the barrel or the battery is being used?
  20. SparkyCal

    Back to the Breadboard

    Attached is my plan to wire the LED and the DC barrel to my circuit. Do you think it will work? The idea is to have the LED light up when the effect is active and go off when it is not. The idea is also to have the DC barrel plug power the circuit when it is plugged in, and, at the same time...
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