The tuning dial lamps and function indicator lamps are in an unusual... place. Or, unusual to get to, actually. There is a two-sided metal cover over top of the wires leading to the function indicator lamps. You can remove that cover by three screws exposed via holes in that same cover. There is a single electrolytic cap sticking out from underneath this cover... and once you remove the cover you find there is a diode and two resistors under that cover. Sheesh. Why? The fuse style tuning dial lamps get replaced with 8V LED warm white LED modules. The wheat bulb lamps for the function indicators and the meter lamps will need to be replaced with T1 3/4 size 6V AC wheat bulbs. There ins't enough remove to add diodes and caps to run LEDs.