Recent content by sur4j

I am trying to build a laser diode driver circuit which which should give a required output of around 1.25v and 200-250mA, I have been having problems with this and want to start inspecting it with a multimeter. The only problem is, I don't have one and really don't know how to select the...

I have recently taken apart a few old DVD drives to see if there were any stepper motors available for a Raspberry Pi project I am currently working on. When I opened one of the older drives I found a motor which was unlike the others as it only seemed to have two wires going directly to the...