Need to drop 6v to 5v for my DC video players at 2A

I think you're confusing things.

In the old days, when semiconductor diodes were still new and tubes were still common, diodes were often used in series because there weren't any diodes capable of the higher voltages needed by the tubes. So they'd put the diodes in series so the string could handle the voltage. But that caused problems, since each would see a different voltage. That's where the equalizing resistors came in. The parallel resistors were there to equalize the reverse voltage drop.

When higher voltage semiconductor diodes became available, you stopped seeing serial diodes in power supplies, because the scheme was no longer needed.

But this voltage drop thing isn't about AC voltage, which the equalizing resistors was about.

The diodes will never see a reverse voltage. They are being used to drop the voltage, and if one diode doesn't provide enough, then add another one. And it's easy to get diodes that can more than handle the voltages seen and the current handled, so getting close to ratings is not an issue either.

ANd that's already been dealt with in this thread. He needs a volt or two voltage drop, and doesn't need regulation. The diodes do it simply. And as has been pointed out, the unit may not even need exactly five volts, but the diodes just add a bit of security.

Michael

So, will this do?

Also, is there polarity with Diods? I see a grey band on one side?

Thanks,

Roveer

Yes, that will do. And yes, they're polarity's to contend with.

To make it simple for you.. inject the Positive voltage from the source, (your adapter), to the side of the diode that does not have the line. To use 2 diodes, take the first diode of the line side, and inject that to the second diode on the side with out the line.. The line side of the second diode, will supply the position voltage to your device. etc..