Ancestors

Written by Nina Kalinina on 2025-01-19 at 14:49

Science class problem:

How many amps do I need to supply to my FireWire cable so it would stop being false advertisment? The wire is 22 AWG copper, 2 meter long, and the coating is PVC (assume 250°C as the ignition temperature).

=> More informations about this toot | More toots from nina_kali_nina@tech.lgbt

Written by Rob Flickenger ⚡️ on 2025-01-19 at 16:05

@nina_kali_nina If you want fire fast, I’d go for volts over amps. Much less power needed. 20-30kV at milliamps ought to overcome the dielectric strength of the insulation and start an arc burning.

Firewire can supply 30V at 1.5A. Should be plenty if you’re driving a flyback with a ZVS driver.

=> More informations about this toot | More toots from hackerfriendly@mas.to

Toot

Written by Kauzerei on 2025-01-20 at 08:14

@hackerfriendly @nina_kali_nina at first I was like "hey, aren't Amps and Volts somehow connected by some Ohm's law?" but your method of 30KV actually does not require the other end of the cable to be connected anywhere! It's genius, you plug one end to the source, the FireWire wire is on fire, no additional load necessary!

=> More informations about this toot | More toots from kauzerei@social.tchncs.de

Descendants