Fade on, Fade off Interior lights

I already have 1N4001 Diodes rated at 1A 50V, I believe this will work... but I am going to ask anyway to be sure, So will this work for my diode in my last schematic? My light is only rated at 0.844 amps.

Just wondering, but ir I put two diodes in paralell with each other, will that drop down to a .35 for ge... and .15 for si? Or will it double to 1.4 for ge, and .6 for si?

No, there is no way to decrease the v drop. If you wired 2 or more diodes in series the voltage drop will add. If you wire 2 identical diodes in parallel the v drop will remain the same. However, the current will divide up and the power handling will double, so if the current the diode needs to pass is exceeding it's rating, and you don't have a larger one, you can parallel them to get the same result. Otherwise the diode will burn up.

The concern about the v drop during forward bias is probably not that big a concern, as it is less then 1volt for a si, and less then 1/2 volt for a ge. However, since this circuit as some resistance in it at all times, the added v drop from the diode will make the bulb even dimmer. Decreasing the resistor value will help, but then you have more current. In that case make sure the diode(s) can handle it.

There are numerous versions of how to fade the interior lights all over the web, here's one of the simpler versions 

http://sound.westhost.com/appnotes/an004.htm