I was cleaning up a few new tags and found a couple corner cases that might help resolve some big-picture questions on whether a tag is needed:
Should every specific model number of hardware have it's own tag, or should that be limited to individual radios (or lines) and tag everything else with either manufacturer or a more general tag? vgs-1 has exactly one question, the same as voice-keyer, I think vgs-1 can be deleted because the issue is relevant to most hardware of that type, but also because there are enough different voice keyers that it would be better to tag all questions about them as voice-keyer rather than ten or twenty different splinter tags.
On the other hand, maybe something like ts-590s might be okay? I'd rather see a tag for each "line" of similar radios, since there's so much similarity between (for example) a TS-820, TS-820S, TS-830, TS-830s, that they could all fit in a ts-820-830 with a few cleverly placed synonyms.
Is vacuum-tube about vacuum tubes, or radios that use vacuum tubes? Anyone with a strong opinion one way or the other want to write a tag wiki?