I have a pretty touch lamp that could operate at 3 levels of brightness and one "off" level . Each of these levels needed a slight tap on the top of the lamp. One day I tried putting in a small fluorescent lamp instead of an incandescent one (just testing y'see) and that seems to have spoilt the lamp. It has now become tap insensitive , operates at only the brightest setting and needs to be disconnected from the mains to be put off! Your suggestions will help salvage my tap lamp. Thanks in advance