this doide burned?

[GeGGuli]

so i found a laser diode and i plugged it in my homemade driver and i started to roll my potentiometer to less resistance broblem was that wire from battery to driver didnt connect wery vell (cut in a middle and with hands pushing wires together) it didnt seem to ligth (i had camera to see if it was an ir diode)and suddendly when i moved wires it ligthed and turned off. i havent been able to ligth athat diode again. so is my diode "burned" now?

lol what a typo in title xD

 

[Deleted member 8178]

Most probably, do you have a digital multimeter?

 

[GeGGuli]

yes

can i see with multimeter if my diode is dead?

 

[Deleted member 8178]

Yes, check the current going in the circuit, and measure the voltage over the diode pins.

 

[GeGGuli]

i putted DMM to 200mA and putted red and black wires to between battery and driver and i didnt get any measures

i putted to 20V and putted red and black wires to diode pins and i didnt get any measure

am i doing this rigth?

 

[Deleted member 8178]

Since you don't get any current or voltage it seems like either the battery is dead or the driver is.

 

[GeGGuli]

batteries are not dead they run in 6V but what about driver i made that myself with DDLs instructions

how do i measure my driver to see if its dead?