OK gang this promises to be an easy, inexpensive upgrade that, for visually oriented travelers, is well worth it.
Careful investigation reveals that the Mother Ship has spared no expense in obtaining, for new owners of Classic Limited trailers, the finest possible generic Chinese cool white fluorescent tubes. These tubes appear to have issued forth from a factory which emerged out of a space-time discontinuity after disappearing without a trace from upstate New York in the late 1940s. Having mysteriously transported itself to the Guangdong Province of China, it is making miniature fluorescent tubes to the same standards, with the same cutting-edge technological excellence, that prevailed in that nearly-forgotten day and time.
If only the same thing would happen with door latch factories.
So, anyway, no wonder they look awful.
Refitting a 30' classic requires a dozen F8T5 bulbs and two F15T8 bulbs. The larger F15T8 bulbs are in the bathroom fixture.
High quality F8T5 bulbs are hard to find. Atlantalightbulbs.com and alldaylighting.com advertise Philips Ultralume 30 F8T5 bulbs. Atlantalightbulbs only sells in case quantities (24) so I ordered from alldaylighting. The bulbs arrived with a different label used in Europe, not ultralume, but the phosphor is apparently the same.
The local Home Depot sells F15T8 bulbs of the GE soft white brand, which is an older phosphor with lower light output but reasonably good light quality. I'm going to install those at this point and see how they work. If they're not bright enough I'll try to find some with a modern phosphor.
I'm away from the trailer but will report back after this weekend.