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  1. C

    SOLVED Windmill CB Mod

    I decided to do some pedal therapy and regain confidence building the Aion Empyrean Deluxe/Darkglass Alpha-Omega. Ripping circuit and functional off the bat. But no mods, so there's that. And happy thanksgiving as well! Happy indigenous people's day to my 'murrican comrades.
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    SOLVED Windmill CB Mod

    Well, the j112 read DSG on ye olde tc1, so I tried twisting pin 2 for pin 3 again. It is functional.... Kind of. Whereas before I had volume and low clipping, now I have strangled clipping and low volume. Dimed volume and gain is giving me somewhat under unity. Last time this happened to me...
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    This Week on the Breadboard: The Germanium Filter

    Just watched the youtube video and ayyyy... Another must build as I watch my PTP Chuck D Bones project stack grow. I really like that style of guitar/player oriented interface, like the corroder.
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    This Week on the Breadboard: The Germanium Filter

    Wow, I was not expecting such a preponderance of SMD and such a clean board. I always thought their stuff would be grimy and hand soldered with rat fur. But, maybe that's just the image they like to project.
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    SOLVED Windmill CB Mod

    Mon Cher chat. Thank you so much for your help. It's always appreciated. Oddly enough, I did think of that and it was only functional in the non twisted position. I will see what the transistor tester says, but maybe this indicates a funky j112 or something wrong in my circuit somehow. I do...
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    SOLVED Windmill CB Mod

    Alright, here is maybe a slightly more productive direction to remedy my anemic build: what would I need to do to increase the gain of the circuit? I am proceeding on the assumption that the issue is with Q1 since it's the most modified, and Q2 and Q3 seem to be responsive to the VREF trimpot...
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    Help measuring SMD JFETS

    Oo-la-la, qu'est-ce que c'est?
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    Help measuring SMD JFETS

    I think the idea is that hole lets the transistor body through, but catches the legs and holds them against the pads. Seems like it could be kind of a lengthy process to insert/remove the smd, and why is the clamping force so far away from the clamped object?
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    Help measuring SMD JFETS

    All the better to use weak magnets, most likely, if magnets are the way. Currently exploring some ideas with my synth-building buddy who is deep into 3D printing.
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    Help measuring SMD JFETS

    How hard would it be to 3D print a short column overtop of an adapter board with a keyhole in the middle the shape of a SMD transistor?
  11. C

    Help measuring SMD JFETS

    .090/.093, sorry. Yes, it's in the high range for J201, thus the frustration at losing it. Most are clocking between .040 and .08. Surprisingly, the Interfet through-hole are more consistent in their range in my measurement history.
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    Help measuring SMD JFETS

    I don't know about you, but I want to invest as little as possible in SMD transistors and their accoutrements. I really dislike working with them. Maybe even loathe it. I found *one* SMD J201 out of a batch of 20 that I could pair at .93 IDSS with a .90 IDSS I had already soldered in my...
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    SOLVED Windmill CB Mod

    I should have added the gain is not very apparent. Plenty of volume, not a lot of breakup. I'm guessing it's something to do with the J112 seeing as the BS170s are biasing to target ranges? I don't really know what the source reading should be. I guess the drain looks okay ~9v coming off...
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    Help measuring SMD JFETS

    I feel like there has to be a 3d printing file somewhere or that somebody can design that will do what we all need in a jig. With or without magnets.
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    Help measuring SMD JFETS

    MichaelW and the rest-- I don't think the magnet idea is dead yet. It just needs a less powerful field. The magnetic bits are the feet. I think with a strong magnet, it's double the force pulling down on the side with two feet than with one, so it lifts. If the pulling force isn't so great...
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    Help measuring SMD JFETS

    Are you serious?? I LOVE THIS THREAD!!!!!
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    Help measuring SMD JFETS

    Well, it ain't called electromagnetism for nothing. I think the only way to be really sure is to do the scientific thing and test a JFET with and without magnet to see if the readings shift in a significant way. Might be an argument for a weaker magnet as well.
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    Help measuring SMD JFETS

    I mostly have rare earth magnets and the fields were making the smd stand on end (the two prong side). It could be a case of too much of a good thing or maybe I need to position it better as suggested by MichaelW. Will test again.
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    SOLVED Windmill CB Mod

    Hey folks, It's been a frustrating week with pedal builds and mods. Finally measured all of my SMD J201s so I could implement the optimal OKKO Diablo/Deofol JFET cascade, and the crown jewel, the only 0.93 IDSS I have pinged off my chest and into the wilds of my basement when I was trying to...
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    Help measuring SMD JFETS

    Yeah, I tested out the idea. The SMDs are super magnetic and will leap towards the magnet, it's true. Buuut, I tried several different types and orientations of magnets, and in each case, the SMD wanted to stand on end, unfortunately. I don't have the similar style bar magnet as you have (is...
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