The dial scale are wedge bulbs, I took out the offending to find it is plainly marked 8V03A - 8V 30mA I assume, I replaced the axial meter lights with 12V 60mA bulbs I had around but they are a little dim. It looks like they are all feed by the same circuit so I assume the axials, they are the smaller 20mm x 4mm type, are also 8V but not sure of the amps, I would guess 170 mA. I will post when I find the correct value.