UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Farnell L30-5

MrBungle · 15th Jan 2020, 6:23 pm

If you are charging batteries there’s no reverse protection diode so when the DC source collapses during a mains transient or power failure it’ll blow the pass transistor and driver up. Very common problem with Farnell supplies. The two I’ve had go through had diodes added.

15th Jan 2020, 6:23 pm	#4
MrBungle Dekatron Join Date: Jun 2016 Location: London, UK. Posts: 3,687	Re: Farnell L30-5 If you are charging batteries there’s no reverse protection diode so when the DC source collapses during a mains transient or power failure it’ll blow the pass transistor and driver up. Very common problem with Farnell supplies. The two I’ve had go through had diodes added.