UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

Jolly 7 · 6th Sep 2019, 12:18 pm

My attempts to build a 1.2 to 37V voltage regulator have been frustrated by what I can only guess is a fake LM317T. It was part of a kit purchased from eBay. The kit did not come with the insulated washer or mica sheet either. Removing the IC has caused damage to the board and it looks like it could be a write off.
I wonder what other members' experience is in relation to LM317Ts purchased from China ?

6th Sep 2019, 12:18 pm	#1
Jolly 7 Octode Join Date: Feb 2018 Location: Southampton, Hampshire, UK. Posts: 1,061	Defective/ fake LM317T My attempts to build a 1.2 to 37V voltage regulator have been frustrated by what I can only guess is a fake LM317T. It was part of a kit purchased from eBay. The kit did not come with the insulated washer or mica sheet either. Removing the IC has caused damage to the board and it looks like it could be a write off. I wonder what other members' experience is in relation to LM317Ts purchased from China ?