On 12/07/2019 07:25, Graeme wrote:
In message , Fredxx writes

I've tried google images and got nowhere. This is where a link to a
picture might help.

You're right, of course.Â* eBay US item 223553936563

https://www.ebay.co.uk/itm/Lionel-39...-WITH-DIMPLE-B
ULB-NEW/223553936563?epid=1739264075&hash=item340cda5cb3:g :kXIAAOSw5cNYeo
Ob

Intrigued by Andy's suggestion of drilling an LED bulb.Â* Should I infer
that such a bulb (never used one) is plastic, rather than glass?


LEDs are plastic.

Now we know what it looks like..

use an ordinary bulb and glue a small washer on the top (M2 or less).

It only has to stop the pin falling off.