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  1. jdduffield

    Blue Yonder Schematic Question

    I imagine it will be too difficult to tell the issue from photos, unless it is glaring. Also, the little black board is an output booster that I added after the fact, hoping it would help. It brought the volume up, but didn’t solve anything as the gain pot was still not doing hardly anything.
  2. jdduffield

    Blue Yonder Schematic Question

    I need to buy a DCA Pro to test JFETs. Just haven’t done it yet.
  3. jdduffield

    Blue Yonder Schematic Question

    I actually agree with this. I’ve started buying from mouser. These particular ones I purchased as a noob years ago. I will say though, when I put the Rat JFETs in, which are from mouser, the results were the same. So, I think I’ve got something wrong with my circuit build.
  4. jdduffield

    Blue Yonder Schematic Question

    I’ll try to remember to do that tonight.
  5. jdduffield

    Blue Yonder Schematic Question

    I’m not sure but I think Amazon.
  6. jdduffield

    Blue Yonder Schematic Question

    Yes. Both maxed. I tried biasing both to 4.5v. I’m not used to JFETs and I think maybe that is my issue. I tried different JFETs and the result is the same. I tried the rat ones, and various 2SK30s. I tried reflowing the solder on everything. The post above says the legs don’t need to be...
  7. jdduffield

    Blue Yonder Schematic Question

    Another question I have is around the JFET legs. Is the 1, 3, 2 meaning the leg number? (See photo) I think it does and I have the legs of the JFETs like this, where leg 2 and 3 are swapped. (See photo)
  8. jdduffield

    Blue Yonder Schematic Question

    Just a follow up. I put a booster circuit in front of it, which has a single transistor boost to bring the overall volume up. What I’m noticing now is that the gain control never did work properly. When the gain is all the way down I hear nothing (which is as it should be). However, when I turn...
  9. jdduffield

    Blue Yonder Schematic Question

    I am attempting to build a Blue Yonder from the schematic. For Q1 and Q2, I’m using 2SK30A JFETs. I’ve noticed it is working, but quieter when the pedal is engaged in comparison to it being bypassed. Is there a resistor value I can swap to affect output volume? Also, leg 1 of these trim pots go...
  10. jdduffield

    How Can I Bias a Push-Pull Fuzz?

    Thanks! This gives me some good ideas to try.
  11. jdduffield

    How Can I Bias a Push-Pull Fuzz?

    Yes, the octave effect is more noticeable up there.
  12. jdduffield

    How Can I Bias a Push-Pull Fuzz?

    Q2: 4.0V Q3: 4.3V But… Q1 base is only showing 1.2V
  13. jdduffield

    How Can I Bias a Push-Pull Fuzz?

    Hi, I built this fuzz circuit tonight and am wondering how to change the bias on it. It just isn’t quite fuzzy enough, sounds a bit choked and Velcroy, spitty. Here is the schematic. For Q1 & Q2 I’ve got hFE values of 354. For Q3 I’ve got an hFE value of 320. Also, I had to sub the 500k...
  14. jdduffield

    EQ for Upright Bass?

    Anyone want to recommend a PedalPCB board that would work best as an EQ for upright bass?
  15. jdduffield

    GeneralTSO Question - Green LED

    Ok, thank you.
  16. jdduffield

    GeneralTSO Question - Green LED

    Examples:
  17. jdduffield

    GeneralTSO Question - Green LED

    For the optical part of the GeneralTSO, it says to use a 5mm Green LED. Does it matter if the LED is clear when it is off? I have both the green tinted ones and the clear bright ones. The tinted ones are diffused and the clear ones are not diffused. Both are green when lit.
  18. jdduffield

    How to solder to a broken potentiometer?

    I didn’t have a lug version of the potentiometer I needed. So, I removed the legs from a PCB mount version of the values I needed. (See photos.) When I soldered wire to it I either destroyed the pot or couldn’t get a good connection. Is there a good way to solder to a pot where the legs have...
  19. jdduffield

    Does changing modes reset the controls positions on Spatialist?

    Thank you. The reason I was asking is because I’m building one and wanted to keep the 3 controls inside as trim pots to simplify the external UI but wasn’t sure that would work. This helps.
  20. jdduffield

    Does changing modes reset the controls positions on Spatialist?

    Does changing modes reset the controls positions on Spatialist? In other words, if I have the control 1, 2, & 3 where I like them and then switch modes, then switch back, do the values get reset where I’ll need to move them around to the settings back? … What if I unplug power and plug it back...
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