Hi I on a budget and hope to try to build a laser for education purpose.
I read up and have one question- if I use a cheapest red diode first will I be able to change it to a blue diode later? I was thinking to buy a red diode which cost less than 1 buck from ebay
I read up and have one question- if I use a cheapest red diode first will I be able to change it to a blue diode later? I was thinking to buy a red diode which cost less than 1 buck from ebay