UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Workshop: LED replacements for flourescent tubes.

Vintage Engr · 18th Nov 2017, 2:42 pm

I tend to agree with you Paul,

I threw this in just to see if anyone had found the perfect replacement solution, before replacing the current units.

Interestingly when I originally purchased the fittings, I was horrified to find that there were no PFC capacitors fitted.

The first time I turned them on, (They are split, on two separate circuits) there was a lound bang as the switch contacts welded up, & the MCB tripped. That was when I discovered all they had was a O.1u acrross the input.
I immediately fitted PFC caps, & changed the switches for named manufacturers 10A X type. No more problems. So having previously spent time fitting 10 caps, I don't really want to have to take all the original ballast out & start again.

It seemed like a good idea at 8:30 this morning.

18th Nov 2017, 2:42 pm	#4
Vintage Engr Heptode Join Date: Jan 2008 Location: Shrewsbury, Shropshire, UK. Posts: 841	Re: Workshop: LED replacements for flourescent tubes. I tend to agree with you Paul, I threw this in just to see if anyone had found the perfect replacement solution, before replacing the current units. Interestingly when I originally purchased the fittings, I was horrified to find that there were no PFC capacitors fitted. The first time I turned them on, (They are split, on two separate circuits) there was a lound bang as the switch contacts welded up, & the MCB tripped. That was when I discovered all they had was a O.1u acrross the input. I immediately fitted PFC caps, & changed the switches for named manufacturers 10A X type. No more problems. So having previously spent time fitting 10 caps, I don't really want to have to take all the original ballast out & start again. It seemed like a good idea at 8:30 this morning.