Looking for correct bulbs for 1965 Plymouth Valiant 200 for Instrument Cluster

Maddog55 said

My cluster panel lights have not been working. Bought the car over a year ago, and other owners obviously did all sorts of work. Fuses are all in order. I pulled the cluster yesterday and took out the bulbs. 5 out of 6 were 194. One was a 158.

Did the prior owners put in an incompatible bulb? Or would a 194 work? I’m looking to replace all the bulbs with LED versions but want to make sure I’m getting the right ones since LED ones are so expensive.

I found this chart online this morning, but want to be sure.

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Before you get into swapping bulbs around, figure out why your panel isn't lighting up. If the bulbs are good and it isn't working, swapping to LEDs isn't going to change a darned thing. Make sure the panel is grounded and start tracing current paths and testing components. (are you sure the panel dimmer isn't just turned all the way down?)
Once everything is working correctly, and if you still feel the need to switch to LEDs, be aware that you'll open another can of worms. Most LEDs have a polarity, and must be installed in the correct orientation in order for them to work. The instrument lights need to be dimmable, and the turn signal indicators and hazard lights (if so equipped) will require the use of electronic flashers with dedicated grounds if you intend to also use LEDs for your outside lights... lots of threads on this, do a search. It isn't just a matter of swapping bulbs.