Looks like Pete beat me to it, I was going from my GE reference sheet.
I expect the readily available #53 bulb rated 14.4V .12 A would be a good replacement. More importantly how are you going through so many of these fuse bulbs? A change in operating practices is advised
Thanks guys...
I traded for a 101 and the lamp fuse and cover was missing from that one...I was given a junker chassis and that one had no fuse lamp....I did blow the one good working one by leaving it hooked to an antenna whilst transmitting on the antenna above it........doh!