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Aaron Kimball

@gremblor.com
458 followers 539 following 1.2K posts

I like circuitry (synth DIY), software, bio stuff, and sailing. aka Firefly )'(. Roar!

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Aaron Kimball @gremblor.com · 16/09/2026
My copy of /The Secret Life of Circuits/ arrived today. Actually... Two copies arrived? Anyone want a book about electronics?
Two hardback copies of "The Secret Life of Circuits"
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Aaron Kimball @gremblor.com · 23/07/2026
Fun twist: most Jewish traditions originally had the bimah at the center, although more modern sects like Reform Judaism place the bimah at one end of the room with the Ark (Torah storage) behind it. Raised platform, usually with separate lecterns for the Rabbi and Cantor (song leader).
A reform Jewish synagogue. Two files of pews with a central aisle face a raised platform. Two lecterns are visible on the platform as well as an elaborate ritual bookcase.
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Aaron Kimball @gremblor.com · 23/07/2026
Meet Klorb! Our ambitions are modest.
A terminal UI for a coding agent. Klorb -- the agent -- is represented by a really dumpy-looking Temu version of a Claude-like coding monster mascot. Klorb is missing an eye, listing to one side, and doesn't appear to have arms to type with. Underneath Klorb, he greets you with the inspirational message, "Let's write something that almost works on the first try."
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Aaron Kimball @gremblor.com · 20/05/2026
Reminds me of
Split screen of younger Jeff Bezos, fresh faced and smiling caption "1998 I sell books" vs modern Jeff Bezos, looking like a Hollywood arms dealer, caption "2020 I sell whatever I want."
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Aaron Kimball @gremblor.com · 27/04/2026
This is the garage. The stalls in the carport in the back are narrow (you can't open both doors all the way inside one, even on the Prius) but the curbs in this entry are the real hard constraint. I haven't measured with a tape measure but even driving the Prius w/o scraping the tires is hard.
A tunnel under a building just precisely wide enough for a car to carefully drive through. A multi-bay carport is visible through the tunnel on the other side.
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Aaron Kimball @gremblor.com · 15/03/2026
Also, I knew the differential amplifiers I'm using for input signal buffering used a decent amount of current but I'm still surprised how hot that part gets.
Thermal image of a pcb, overhead view. Two small ICs at the top of the board are glowing hot. One is labeled at 65.7°C. The table surface behind the pcb is labeled 26.4 degrees
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Aaron Kimball @gremblor.com · 15/03/2026
Took two tries, but now I have the home-built ability to annoy ALL the neighbors with my taste in music.
Overhead view of a circuit board for a stereo amplifier. A number of leads with alligator clips are fixed on one side. All the components on the board - big transistors, capacitors, etc - scream "CHONKY." An absolutely comically sized heatsink is mounted in the center of the board. Profile view of a circuit board for a stereo amplifier. A number of leads with alligator clips are fixed on one side. All the components on the board - big transistors, capacitors, etc - scream "CHONKY." An absolutely comically sized heatsink is mounted in the center of the board.
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Aaron Kimball @gremblor.com · 14/02/2026
Great article. I'm not a gamedev, I work in boring old b2b software, and this paragraph hits like a thunderbolt for any product management user interview, not just gaming. Everyone wants (exactly what I already have) but (it reads my mind and does thing X differently only when I think it should).
Picture of text:

This is a trap, because people who are offered a new option often fixate on what they would be losing if the old option went away, and because they haven't experienced the benefits of the new one yet, they can't actually place those two as equal. Those kinds of questions are great research for discovering what players are afraid of, not what they actually want. The classic case of this is The Guy Who Tried To Ruin Halo 2.
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Aaron Kimball @gremblor.com · 22/01/2026
Boards are usually SMT. Big box of common components, sorted by category (caps, 1206 resistors, 0805 resistors in various ranges..); category bags hold sorted collections of cut tapes in baggies. Workbench for prototyping has trays of sorted baggies . I use a bookmark to keep my place.
A surprisingly clean workbench with a shelf full of electronics test equipment on top. A rail under the shelf holds several blue trays, each stuffed with plastic baggies of parts from supplies like digikey. The trays are labeled "resistors", "capacitors", and so on.
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Aaron Kimball @gremblor.com · 01/12/2025
Ok, weekend project done: @museum.of.emilyk.art 's Frog of Righteousness now welcomes any visitors to our home.
A long hallway with framed pictures lining each side. Visible front left is a poster drawing of a large inflatable frog outlined with Talmudic commentary of the second plague visited on Egypt in the book of Exodus.
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Aaron Kimball @gremblor.com · 27/11/2025
Behold, the humble potato:
A pot of creamy mashed potatoes A sweet potato casserole covered in a layer of golden brown marshmallow
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Aaron Kimball @gremblor.com · 15/11/2025
The custom keycaps were great, an off the shelf option will never be as personal an instrument as The Weapon Of Choice was. It was also just a solid build. I would pay A Lot to get another one like this from another mfr.
A full size (104-key) mechanical computer keyboard on a desk. The keys are a palette of gray, white, purple, and orange. Some keys have custom labels; the ENTER key is actually labeled "Roar!"
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Aaron Kimball @gremblor.com · 26/09/2025
Strap in, motherfuckers. It's decorative gourd season and we're not going to waste a goddamn minute.
A crockpot on the stove with butternut squash soup on the boil. Diced apples and other harvest products float in the broth, darkened by the liberal addition of a number of autumnal spices, alongside the cubed squash.
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Aaron Kimball @gremblor.com · 10/09/2025
A mockup image of a Lego kit box showing a lego-ified version of the very yonic Virgin Mary statue recently unveiled. The box is labeled "awkwardly vaginal Virgin Mary statue", and purports to be a 250 piece kit, for ages 8+.
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Aaron Kimball @gremblor.com · 27/06/2025
Swim competitions have gotten a lot more exciting since I was a teenager.
Picture of Google AI response to a search for the "difference between speedo endurance jammers and core jammers."

The AI response is: "Speedo adult jammers and core jammers, while both being swimsuits designed to improve speed and reduce drag, differ in their primary purpose and features. Speedo jammers, like the Endurance+ jammers, focus on durability and performance for regular swimming, while core jammers, often used in gaming contexts, are designed to disrupt enemy equipment and killstreaks."
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Aaron Kimball @gremblor.com · 15/06/2025
idk exactly how many folks turned out today in SF but it was "Verizon cell service couldn't keep up" dense with people for literal miles.
A photo looking down Market St in San Francisco on a sunny afternoon. For block after block, til the end of the view, thousands of people marching with flags are thronging across the entire road.
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Aaron Kimball @gremblor.com · 19/05/2025
Evergreen
Screenshot of tweet by @TweetPotato314. Text reads:

her: let's role play

Me: ok I'll be elmo and you'll be-

Her: elmo?

Me: oh fuck yes two elmos
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Aaron Kimball @gremblor.com · 13/05/2025
They've got a whole page on this, mostly about evils and pitfalls of margin. basiccapital.com/learn/margin... The benefit of margin is if the market crashes you don't lose your house! The loan collateral is part of your brokerage acct. Their own product is *super* vague on their collateral:
Screenshot of basic capital web site. text reads:

Basic Capital is working to build the infrastructure that will enable term loans where ETFs act as collateral. The idea is similar to margin loans but with the structured predictability of a term loan.
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Aaron Kimball @gremblor.com · 09/05/2025
Google AI is WAY too credulous
Picture of text:

Google search result AI "one box" result: Including results for "thesis defense snake fight":

Yes, some universities have a tradition of including a "snake fight" portion in thesis defenses, where students fight one of the university's snakes. The quality of the student's thesis determines the size of the snake they must fight, with better theses resulting in smaller snakes.

The citation is from a Tumblr link: "Advice: the 'snake fight' portion of your thesis defense - Tumblr"
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Aaron Kimball @gremblor.com · 07/05/2025
This is absolutely metal AF
Picture of text (Wikipedia excerpt):

Stephen is chiefly remembered in connection with his conduct towards the remains of Pope Formosus. The rotting corpse of Formosus was exhumed and put on trial, before an unwilling synod of the Roman clergy, in the so-called Cadaver Synod in January 897. Pressure from the Spoleto contingent and Stephen's fury with Formosus probably precipitated this extraordinary event. [4] With the corpse propped up on a throne, a deacon was appointed to answer for the deceased pontiff. During the trial, Formosus's corpse was condemned for performing the functions of a bishop when he had been deposed and for accepting the papacy while he was the bishop of Portus, among other revived charges that had been levelled against him in the strife during the pontificate of John VIII. The corpse was found guilty, stripped of its sacred vestments, deprived of three fingers of its right hand (the blessing fingers), clad in the garb of a layman, and quickly buried; it was then re-exhumed and thrown in the Tiber. All ordinations performed by Formosus were annulled. [5]
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Aaron Kimball @gremblor.com · 05/05/2025
Literally, they're going with a range on this bc lol who knows 2/3
Screenshot of shipping method terms and conditions text:

2. Shipping Method

DDP (Customs fee paid by JLC, customers still need to cooperate with customs clearance if required by local customs)

DHL Express (DDP)

2-4 business days

Owing to the current duty regulations in the U.S., products exported from China to the U.S. will be levied a duty rate of 145%-175%. To ensure smooth customs clearance for our customers, JLC will offer a Delivered Duty Paid (DDP) service channel. Given that the exact duty rate remains unpredictable, we will pre-collect duties at a rate of 175%.

In the event that the final duty rate is lower than 175%, a refund for the difference will be processed upon receipt of the tax invoice. Any question pls contact: leon@jlcpcb.com
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Aaron Kimball @gremblor.com · 05/05/2025
I was confused about the mention of the $100 (or is it $200?) de minimis tariff in context of the 145%... Is that a floor? Ceiling? Additional? At least on jlcpcb's pricing tool, they're going with "it's 145-175%". 1/3
Screenshot of shopping cart summary:

SUMMARY

Merchandise Total

$13.80

Shipping Estimate

$29.75

Customs duties & taxes

$24.15

Grand Total

$67.70
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Aaron Kimball @gremblor.com · 03/11/2024
Oh that's an interesting design! What do you like about it? I have this "pistol"-style Knipex a few years ago and never looked back. Handles 10-24AWG and lets you adjust the stripped end length quickly, precisely, and repeatably. How does that one compare?
Knipex 7 1/4" Automatic Wire Stripper 10-24 AWG; a device that looks like a hot glue gun but for stripping insulation off of wires and cables.
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Aaron Kimball @gremblor.com · 28/10/2024
Conundrum: I am out of tea, but to disturb this little man would make me history's greatest monster
An orange cat sitting on my lap. An empty mug once full of tea is on the right side of the desk in front of me.
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Aaron Kimball @gremblor.com · 20/10/2024
Haven't posted about it much but I'm designing and building an analog semi-modular synth from scratch. Here's photos of the completed analog sound chain and an LFO module I just finished. Blog here: blog.gremblor.com
A collection of rack-mounted audio circuitry modules sits on a desk. Each module has a faceplate covered in audio jacks, knobs, and switches. A rear view of rack mounted audio modules, each has a PCB behind it. There is a significant amount of wiring between the modules, and from each to a power supply PCB with a prominent heatsink. A eurorack module sitting on a desk; it has a faceplate labeled "GS-1003 DUAL LFO" and 6 knobs, five switches and ten audio jacks.
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Aaron Kimball @gremblor.com · 31/08/2024
If you see this, I IMPLORE you to post a picture from whatever device you're using without explanation.
A stack of four connected circuit boards attached to a 3x4" faceplate covered in knobs and jacks, with some external wiring visible, held in a hand in front of a workbench.
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Aaron Kimball @gremblor.com · 24/08/2024
Sends me every time
A cat standing on its rear legs stretching up to look out the window of a house door. A wide band across the middle third of the cat is shaved of all its fur.
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Aaron Kimball @gremblor.com · 10/08/2024
3 frame screenshot conversation from the TV show arrested development:
1. Lindsay asks, "well did it work for those people?"
2. Tobias Funke replies "no, it never does. I mean, these people somehow delude themselves into thinking it might, but..."
3. (he continues) "but it might work for us."
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Aaron Kimball @gremblor.com · 11/06/2024
"Sir, they're not buying the ten dollar pasta sauce. Customers say it's too expensive for a jar of blendered tomatoes." "What if we just /tell/ them it's a low price?" "Goddammit Jerry, you're a genius!"
Cans of tomato sauce on a shelf with a $9.99 price tag and a conspicuous "Low Price" sticker
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Aaron Kimball @gremblor.com · 07/04/2024
CEO at the annual strategy meeting: "we need a disruptive new business plan that..." Marketing dept, high on cocaine: "--say no more fam, I'm on it. Vegan. Spam. The future."
Two tins like spam containers labeled "luncheon meat style" and "luncheon burger style" both claiming to be "100% plant based".
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Aaron Kimball @gremblor.com · 08/10/2023
You don't say?
Screenshot of the Washington Post pay wall
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Aaron Kimball @gremblor.com · 10/08/2023
We could have had a protected shoulder lane on Valencia St for bikes, but instead we got this innovation. If you feel the need to mail a full page of instructions to everyone within a mile of the street explaining its safe use... Maybe rethink your plan?
A diagram of a street with the center lane reserved for bicycle use along with emergency vehicles, along with a full page of densely printed instructions regarding its safe use.
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Aaron Kimball @gremblor.com · 05/08/2023
Looking stylish, Daisy! Potato just got one this week too. The back half of the dog doesn't work so good anymore and he needs a hand getting up the stairs to the apartment.
A beagle lying on the floor, looking at the camera, wearing a harness with two carrying handles on his back
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Aaron Kimball @gremblor.com · 21/07/2023
This is Potato. He usually makes either a short high pitched "HOOT!" When sad (like when he's alone) it's a long mournful "ARROOOOO". And when panicked like when a stranger shows up at the door and he must defend the home, a honking, bleating "OOOOORT!"
A beagle's head, close zoom, sleeping on the couch
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Aaron Kimball @gremblor.com · 08/07/2023
🎵 This one goes out to the snoot with one less eye
A beagle with one eye laying on a pillow
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Aaron Kimball @gremblor.com · 02/07/2023
Handing out my invite codes and doing my best at trying to set up expectations on the culture like
Picture of a Facebook chat:

I say that sign ups are currently rate limited.
My conversation partner says that she will be patient.

I reply: ":) that's a good virtue there. It's kind of adorable how janky the app is.

Like it is realllllly hot off the press. Doesn't even have DMs. Or show videos. Just cat pix. And pix of trans people being horny on main. Or pix of Alf being extremely buff and nekkid, for some reason that's a thing there, I can't explain it"
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Aaron Kimball @gremblor.com · 30/06/2023
"did somebody say my name?"
The top of a dog's head, from the eyes upward, looking at the camera from very close up, with a living room scene behind him
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Aaron Kimball @gremblor.com · 22/06/2023
Doing my part for testing this app
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Aaron Kimball @gremblor.com · 07/05/2023
"and another thing: im not mad. please dont put in the newspaper that i got mad."
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Aaron Kimball @gremblor.com · 07/05/2023
On the kb thing, here's a screenshot of I see if I click the "new post" FAB from the skyline. Note I use Microsoft SwiftKey not the stock android virtual kb
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Aaron Kimball @gremblor.com · 07/05/2023
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