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Deleted member 18243
Hello I have a kitchen lamp fitting which takes a 60 watt circular fluorescent tube.
It is about 10 years old and has had a few replacement tubes over the years, but now it seems to kill every new tube I fit in it, and these tubes are expensive!
When a new tube is fitted (and I always put a new starter in with it) and switched on, the tube lights for about one second and then cuts out, leaving the tube ends black. Subsequently it will not light.
The only components in it are the tube, starter and choke. All the wires look OK, so I guess the choke must be the problem. (It is a simple 2-wire choke).
In other lamps I have only known chokes to fail open circuit, in which case nothing at all happens when the power is turned on.
Can a choke fail in this way that it blows the tube?
It is about 10 years old and has had a few replacement tubes over the years, but now it seems to kill every new tube I fit in it, and these tubes are expensive!
When a new tube is fitted (and I always put a new starter in with it) and switched on, the tube lights for about one second and then cuts out, leaving the tube ends black. Subsequently it will not light.
The only components in it are the tube, starter and choke. All the wires look OK, so I guess the choke must be the problem. (It is a simple 2-wire choke).
In other lamps I have only known chokes to fail open circuit, in which case nothing at all happens when the power is turned on.
Can a choke fail in this way that it blows the tube?
