Block Signal

As referenced here, the bulbs for the MTH 30-1076 Block Signal are 18volt bayonet base bulbs, #1445.

Here is an 18 volt bayonet base bulb. It is clear, but you can use paint, or nail polish like the old days to color them.

Larry

Town & Country supplies red and green LED bayonet bulbs.    I’ve used several in both 153 block signals & 450 signal bridges.  

Tom

hobojoe posted:

...5 volt LED's to replace the bulbs that came with the units?.

To be clear, you want to operate the signals with 5V DC ?

stan2004, yes I would like to operate the signals with 5V DC

I'd be surprised if someone makes a 5V bayonet LED in both red and green.  My guess is a 6V LED might be bright enough - obviously a YMMV.  Obviously, the trick is to find red-green colored lens in the same shape as the bulbs.  A brief search only turned up clear/frosted lens type.  So I suppose if this was all that's out there, you could apply red/green transparent paint.

Scroll down about halfway to ''Transformer Led Bulb 6 volt No Heat Will NOT Melt Plastic or Painted Parts'' to find an LED equivalent to the original type #1445 bulbs. You will need to paint them.

http://www.superlumination.com/trainbulbs_leds.htm

Larry