#2000 Megadrone

aha!±!±!± thats so funny. they design it realise there was a problem! in stead of fixing it it was cheaper and easier to make a funky cable haha love it. not great for me though! as I haven’t got a clue where the fudge mine is!!! I best be on the lookout

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Hi there everybody,
new to the forum and cutting my teeth at synth building so to say with this one.
I am basically having a problem sourcing the potentiometers for the project, Sams links for them in the BOM are unfortunately sold out and only of the parts required for this project (/cry).
I have managed to source everything else, mostly from eBay but when it comes to these pots there seems to be a myriad of form factors, pin positions, shaft types and lengths also with and without the threading for mounting to a panel.

I can figure out the form factor from the picture on the site that is out of stock but I am unable to find anything on eBay, Maplin, RS Etc… which has everything that is needed. usually, either I’m finding what looks correct but no threads for panel mount or the shaft is to short.

If anyone knows of somewhere else I can get these I would really appreciate the help.

Thanks

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Hey! Welcome! It helps if you add your location. In the meantime, take a look through the Cheap Component Search thread.

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Alpha 100k linear 9mm pots are unicorns :slight_smile:

From previous messages :

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Ahh I Shall thanks and its Newport SW UK.

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I made a FAQ post:


Looks like Mouser ($$$) and Small Bear claim to have stock (at least for 100k, I didn’t check 10k).

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hey just put up a FAQ category, likewise if you have any ideas how people would like to improve the forum let us know!

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If the site software supports it, I’d love a post preview mode so we can see what we’re about to post and make last minute edits.

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On mobile? Desktop has that…

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It’s there on both, but it’s an obscure icon on mobile.

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Thanks. I found it. It’s the television set to the right of the image inclusion widget.

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These came fast!!

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I don’t have my panel/PCB set yet, but I noticed on the project page it says “The output is very low. this was so it could all be mixed together happily and passively.” This is good news if you’re a kilodrone, but I’m only planning on a one-panel decadrone. @lookmumnocomputer, any tips for boosting the level of a single panel to synth levels? I know the schematic mentions a level booster module coming out, but could some values around that LM386 perhaps be swapped out to make it synth level on its own?

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Also, I know we call this the megadrone, but I think we all know that the real megadrone is next:

:rofl:

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go yotta or go home…

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The LM386 is connected up with 10 µF and no resistor between pins 1 and 8, which is the maximum gain configuration (see datasheet). It’s not intended to drive high impedance which I’m guessing accounts for the low output. Maybe you could pick off the LM386 input (pin 3) and send that to an op amp output stage.

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One good estimate is that there are in the region of 10⁵⁰ atoms on earth. How many atoms in a kilodrone? How many kilodrones would we have if every available atom were included in a kilodrone?

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What’s a module made up of, element-wise? Quite a lot of them from hydrogen (in for instance the FR4 epoxy) right up through lead (if present in the solder). Some of those elements are rarer on/in the earth than others, so if we converted the planet into modules there’d be some left over once we ran out of the rarest necessary element. Let’s guess the average atomic weight in a module is 50 and that 75% of the planet can be used. (That’s optimistic, considering most of the planet is silicon, which is of limited use in making modules, but let’s start with that.)

I don’t have a dekadrone but a dac/ino weighs about 50 g, so scaling up, about 450 g for an assembled dekadrone PCB. For the panel, calculating from the density of FR4, about 200 g, total about 650. With average atomic weight 50 there are 1.2x1022 atoms in a gram, so total of 7.8x1024 atoms in a dekadrone module.

75% of Earth would be 7.5x1049 atoms, conveniently within rounding errors of 1025 times what’s in a dekadrone. That’s 1026 Super Simple Oscillators, or 100 yottadrones.

Of course this could be way off; once you discard the excess silicon perhaps only 0.75% of the planet could be used in which case you’d have only 1 yottadrone, for instance. Or maybe even less, but then by the time you’re done you’d probably have access to extraterrestrial mining facilities, particularly since destroying Earth would give some incentive to advance space technology to the rest of humanity (if only to run you out of the solar system on a rail) so maybe you could go higher.

Anyway, a zettadrone should be well within reach, probably a yottadrone, and perhaps a [insert new prefix here]drone.

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This may be my favorite reply yet…

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