Its a bit of a pain...you have to pull he meter panel off and whatever else is necessary to do so, and then IIRC the meters are individual but in order to get to the lamp you have to either remove ALL the meters or de-solder the one that is affected, and then the lamp is a soldered-in type. Totally doable, but not like replacing a light bulb in the ceiling of your chosen dwelling.
Oh..and don't forget you must have located a replacement. I would suggest, replacing all 8 while in there. I found a Variety here: Dynamic Technology Group
Thanks for the advice. I dug in & removed the meter panel cover. After removing the clear tape, the meter lid popped up & made it easy to access the lamp. I had some 7 volt lamps left over from a Teac 3440 I worked on & they worked like new. The whole job took less than 1/2 hour.
Now if I can get a copy of the users manual , I'll be set.