I have a desk lamp that takes 2 fluorescent tubes F15 T8. The current tubes work but I wanted new ones. I just purchased new tubes and they don't work at all. Any idea what is the difference between the old and the new?
On closer examination I notice that the pins on the old tube have been 'Tinned' with solder so I have done the same on the new ones. This results in the pins being a little thicker.
This appears to have solved the problem and the tubes now light!! I'm not sure if it is the lamp manufacturer that did this or if the pins used to be a little thicker.
The 2 lamps I have are fairly old 60's? Made by Luxo.