Where to get bulbs?

I need bulbs for either a Lionel 6-2117 or 6-2163 Block signal. I have 2 without any #s, just Lionel Corp. NY. A book showed the signals and these 2 #s so I assume they are 1 of these. The signals have 2 big bulbs with 2 prongs each, 1 red & 1 green. I’d like to get some extras. Also, I need the “wedge” type little lights for the Lionel Floodlight tower and the Lionel switches with the same wedge lights. Any sources?

Thanks

Try: http://www.traindoctor.com/

I found that some auto parts stores carry bulbs even in different colors. I needed bulbs for my flood light tower and I bought them at a Straus Discount Auto store. They were around $2.

The bulbs you are looking for are the 19RP & 19GP and are kind of expensive at $3.00 each.

Rob