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  1. jubal81

    Aion FX 424 preamp

    Uh. How did you make those knobs look good? Really sweet inside and out!
  2. jubal81

    Griffin Effects Ricochet Spring Reverb (another one)

    I'll send you a DM. New accounts can't send DMs as a security measure.
  3. jubal81

    Bodhizafa Analog Reverb

    You've probably seen them in the grocery store. Point Break is one of my favorite movies and Georgetown brewing had some fun with the character names. As a former editor, those jokes amuse me.
  4. jubal81

    Bodhizafa Analog Reverb

    Nice job, bud! Glad it was a smooth one!
  5. jubal81

    Bodhizafa Analog Reverb

    That's Bodhi. They call him Bodhizafa ...
  6. jubal81

    NAM A2 Raspberry project

    I'd be open to making a custom HAT. We could do one designed for guitar.
  7. jubal81

    NAM A2 Raspberry project

    Really nice work! The interface looks pretty intuitive to me. What about using other audio HATs? I've seen some that include a headphone or power amplifier.
  8. jubal81

    Ceriatone Hey What 504 (DIY Hiwatt DR504 clone)

    Wowser, what a gorgeous build! That wiring work is first rate.
  9. jubal81

    TL072 Alternatives

    You can see the protection diodes for the OPA1678 on the first page of its data sheet. When I used to use the OPA1642, I'd add protection diodes on the input like you see in the schematic for the General Tso compressor. I blew up at least one hotplugging the input jack.
  10. jubal81

    TL072 Alternatives

    These are nice. Look out when using them rght at the audio input. I learned the hard way they don't have overvoltage protection on the input.
  11. jubal81

    TL072 Alternatives

    LF356 maybe? Edit: Just noticed it's also 10v min recommended.
  12. jubal81

    This Week on the Breadboard: Rat Sorbet

    Nope. The one HamishR is talking about got absorbed into Amplified Parts.
  13. jubal81

    What's on the workbench?

    Did I miss something? Are clip-ons out of style?
  14. jubal81

    non-C0G/NP0 MLCC caps

    That's a can of worms. 1. Budget DIYers love the challenge of building pedals as cheaply as possible. They typically advise buying the cheapest possible parts and argue that even if there is a difference in performance, it's not big enough to justify the ROI of pricier components. It's true...
  15. jubal81

    Stuff you wanted to know but were afraid to ask

    If you don't mind SMD, check out the OPA1656.
  16. jubal81

    SOLVED BB-type build with opto bypass - footswitch pop = leaky couping cap?

    That design has some issues. DM me and I'll PIF you my Ubu Roi. It's been in the closet for a while, so it's a little dusty. All the options are on the control plate and it corrects the signal inversion.
  17. jubal81

    DEMO Daphne Blue (smaller version)- Univibe + Chuck’s Emperor overdrive.

    Super layout and boy that looks spiffy. You make those knobs look good!
  18. jubal81

    Help sourcing parts

    Amplified parts is a great source. Just make sure you get the 6.3mm resistors and small box caps with 5mm lead spacing. They have enclosures, jacks, switches, ICs, transistors, etc.
  19. jubal81

    Scientific measurements of clipping diode differences

    Use the diode clipping setup from the Klon circuit. It's designed to be "leakage independent." People have always made a big deal about the "true" Klon diodes, when in reality it was specifically designed so it will work with any Ge diode you put in there. What you need is to drive it with an...
  20. jubal81

    Scientific measurements of clipping diode differences

    I thought Chuck had explained about diode leakage a few years ago and found the thread. The test circuit configuration will matter with Germanium and Schottky diodes because of that. Think of it like there's a resistor in parallel with the diode. Germanium diodes of the same part number and...
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