Magnifier Light

Problem:    Would not turn on (dead transistor) 
Solution:   Replace transistor and board 
Brand:  Unknown 
Cost new:   ??? 
Cost of fix:    80p 
Age:    20yrs+ 
Success?:   Yes 

This was something found in the recycling bin that I thought we could use. A DC powered magnifier and light. Opening it up revealed an absolutely catastrophic death of some poor transistor that had turned to DUST!. I removed the board as it had cracked in half as well. Replaced the circuit with something on stripboard to have an adjustable current source to drive the LEDs. It is now used in our cafe to repair other things!