Instrument bulb holders?

[bbjornson]

So I have a w123, gauge lights not working. Previous owner had rigged an LED to shine on the panel but I didn't like that so I rewired the set up to use 2 LEDs in place of the original bulbs. This setup is really dim, so now I need some help.

I guess the sockets, or bulb holders are missing and I have no idea what they are exactly called or where I can find them.

Any help appreciated.

Also, can someone post a diagram on how to bypass the rheostat? I don't understand what exactly I should be jumping. Thanks...