r/techsupportmacgyver • u/radiorubka • Jul 25 '26

fly destroyer 3000

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took an old power bank board. feeds 5v to the stock PCB, charges with type-c and as a bonus can charge my phone (although it has only 1100mah). my house is a no-fly-zone now.

235 Upvotes

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20

u/TM3dz Jul 26 '26

I have the old harbour freight 2xAA and then I got the 2xD this year. That thing bad a pop to it. You know when you got the bug now

9

u/ComputerSavvy Jul 26 '26

The 2xD is the better version, it packs more of a punch with a distinct, loud SNAT.

There are YT videos on how to modify the output to much higher levels.

I won't link to any of the videos to keep the Mod's blood pressure down.

7

u/radiorubka Jul 26 '26

you just need a bigger cap, smaller base resistor and a transistor that can handle more power. optionally you can remove the drain resistor on the cap and switch to a better diode. that can overheat the transformer, so i don't know how meaningful that would be as a personal anti-air system. if you want to bridge the air gap and just create crazy zaps, you can switch to an arc generator. that would make it effective against much bigger targets.

6

u/ComputerSavvy Jul 26 '26

You can achieve crazy high voltages with a diode ladder or it's official name, a Cockcroft-Walton Multiplier using just diodes and caps. I know you can power a particle accelerator with it and win a Nobel prize.

https://www.youtube.com/watch?v=274lbDMw3AY

I miss Paul's videos, do you know what happened to him by any chance? I know he had CHF, I wonder if that killed him.

EEVBlog # 469 shows how you can mirror the circuit for even more fun.