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Jolly 7 · 25th Sep 2019, 12:31 am

Well, here's finally an LM317 that's not fake. I built a fully functioning voltage regulator from it and some other parts, including a scrap VCR transformer referred to in another thread, a heatsink from an old Woolworths wall wart and a special 220 ohm resistor (reading 250 ohms) from BVWTM ! It works fine with both a 6V radio circuit and a 24V motor.
Many thanks to everyone who helped me build this regulator properly from the scratch and without a kit !! The kit that failed earlier on has been repurposed into a fixed 6V regulator.
It works fine with a 'flying pot'. I selected a 5K one, a better wirewound Bourns one is on its way.

25th Sep 2019, 12:31 am	#48
Jolly 7 Octode Join Date: Feb 2018 Location: Southampton, Hampshire, UK. Posts: 1,061	Re: Defective/ fake LM317T Well, here's finally an LM317 that's not fake. I built a fully functioning voltage regulator from it and some other parts, including a scrap VCR transformer referred to in another thread, a heatsink from an old Woolworths wall wart and a special 220 ohm resistor (reading 250 ohms) from BVWTM ! It works fine with both a 6V radio circuit and a 24V motor. Many thanks to everyone who helped me build this regulator properly from the scratch and without a kit !! The kit that failed earlier on has been repurposed into a fixed 6V regulator. It works fine with a 'flying pot'. I selected a 5K one, a better wirewound Bourns one is on its way. Attached Thumbnails Last edited by Jolly 7; 25th Sep 2019 at 12:38 am.