hi i have 7 components i have salvaged from old broken stuff that im not sure on their use. no1 is a green resistor like thing with bands from thicker end brown brown silver no2 is a glass tube with two metal prongs inside it no3 is a green disc ceramic like part with sck 2r55a written on it nos 4 to 7 are blue disc ceramic like parts with uk ah102m or sec 222m se written on them thanks for your help it is very much appreciated
The more greenish coloured one might be an inrush current limiter or PTC resistor,
Measure it with an Ohm meter, if it measures >10R then it's an current inrush limiter, <1R it's a PTC resistor, if it's open circuit then it's a capacitor.
sck 2r55a: SCK means "Surge Current Killer".. the rest are value.. it is resistor and capasitor at thesame time it depend how to apply it ,i love this electronic device