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JulianEdgar · 09-22-2020, 01:08 AM

Little project I did for UK electronics mag Practical Electronics. Ideal bedside torch - at night, you can still see the LED faintly glowing days after last winding it.

Much better durability than commercial rechargeable battery torches. I have capacitor-based hand-cranked torches still working well after 15 years!

Pics tell the story.

09-22-2020, 01:08 AM	#1 (permalink)
JulianEdgar Banned Join Date: Nov 2017 Location: Australia Posts: 2,060 Thanks: 107 Thanked 1,605 Times in 1,136 Posts	Hand cranked torch Little project I did for UK electronics mag Practical Electronics. Ideal bedside torch - at night, you can still see the LED faintly glowing days after last winding it. Much better durability than commercial rechargeable battery torches. I have capacitor-based hand-cranked torches still working well after 15 years! Pics tell the story.