If I recall, somebody mentioned they were looking for a source of the fuse style lamps for a receiver, like a Marantz, Sansui, Kenwood, Yamaha, Sony, or whatever?
Parts Express
https://www.parts-express.com/cat/fuse-type-lamps/1406 has replacements: 8V LED white, 8V LED blue, and then incandescent in 6, 8, and 12 volts.
Ken