Instrument cluster testing
There isn't consistent quality anywhere. DigiKey offers these regulators from several mfgrs. Some will supply 4.86 average volts. I've found only 1 brand that consistently supplies 4.99 to 5.07 volts. Even so, the novice can over stress /bend the legs and ruin them, or linger with a soldering iron overheat and ruin them.
If you're not afraid of shock hazards you could go through your home opening DVD players,TVs, everything, and never find one of these regulators with its legs spread like a dime store *****. They aren't designed for that.
Yet those who did bend those legs once without killing the regulator posts pictures on the web and says "Here's what to do". . Its all just more horse chit in the stable that no one can shovel up. I dont even try. Bend the little thingy