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

mhennessy · 21st Nov 2017, 1:14 am

As I mentioned earlier, I have one that runs at around 100kHz, depending on the brightness setting, and the waveform applied to the tube is several hundred volts. It's reasonably sinusoidal though.

Not only can this be picked up by radios, but just about anything that is sensitive. But then, it's only a metre above the bench. Not a problem when you know about it, but it did catch me out a few times early on...

21st Nov 2017, 1:14 am	#45
mhennessy Dekatron Join Date: Jul 2007 Location: Evesham, Worcestershire, UK. Posts: 4,244	Re: Workshop: LED replacements for flourescent tubes. As I mentioned earlier, I have one that runs at around 100kHz, depending on the brightness setting, and the waveform applied to the tube is several hundred volts. It's reasonably sinusoidal though. Not only can this be picked up by radios, but just about anything that is sensitive. But then, it's only a metre above the bench. Not a problem when you know about it, but it did catch me out a few times early on...