Hello,
For the circuit attached - when I close the contact (on the left of the diagram) 50 milli-amps flows. I wanted to use these 50 milli-amps as the base current for a transistor - so as to open up a 12V circuit to power a 12V LED - so that when the contact is closed - it lights up the LED ie. use the transistor as an ON/ OFF switch.
Is this circuit logical - should it work?
If so what would be the resistor value and transistor type/ model.
I've mucked around with various transistors that I thought should work - no luck.
Any help guidance appreciated.
Thanks,
Angus
For the circuit attached - when I close the contact (on the left of the diagram) 50 milli-amps flows. I wanted to use these 50 milli-amps as the base current for a transistor - so as to open up a 12V circuit to power a 12V LED - so that when the contact is closed - it lights up the LED ie. use the transistor as an ON/ OFF switch.
Is this circuit logical - should it work?
If so what would be the resistor value and transistor type/ model.
I've mucked around with various transistors that I thought should work - no luck.
Any help guidance appreciated.
Thanks,
Angus