On a few boatanchors, just to see how they looked, I used plain vanilla LEDs with a resistor. The original bulbs were 6 volt incandescent. I tried different colors and R values until I got the color and brightness I wanted. Ended up using yellow. Cannot remember the exact R values though. The LEDs came in a variety pack from Radio Shack years ago and unfortunately the current draw is not listed for them. Probably in the tens of milliamps.
Here is a link to a R calculator for using LEDs.
http://scriptasylum.com/rc_speed/led.htmlMy Kenwood TS930S needs bulbs in the meter and the smaller size LEDs look like they will fit in there nicely. Next time I need to open it up I'll add them.
Rich