Well folks, I tried a few things. Just to review, all of my LTI AF
horns give a few blasts using a Gilbert AF Air Chime Whistle Controller
hooked up to my 30B transformers, then nada. Unless I wait about 30
minutes, then I'll get a couple more blasts if I try, then nada. And
the ringing bells basically don't work at all. Ditto, the LTI horn
control doesn't work at all with my 30B.
Anyway, I tried a D-cell in parallel (it would have to be in parallel);
I think the battery would blow up if you tried to run 15VAC through it),
Next I tried a 9V battery, again in parallel. That worked in one
polarity (I forget which) but not the other, but again only for a few
blasts, then nothing. And then if I tried the Air Chime Whistle
Controller, nothing. And the 9V battery got almost too hot to hold in
about 30 seconds or less (remember, the loco was running, so it was in
parallel to 15 VAC). My conclusions are that 1 and a half VDC is not
enough to fire the horn circuit, and that the problem is in the horn
circuit, not in the transformer, as many of you suggested. That is
consistent with the fact that the horns don't work any better off my 19B.
Also, remember that all of my LTI horn locos do this, not just one,
so the problem is endemic to the mating of an LTI horn circuit to
an AF transformer.
Anyway, anybody have any more suggestions? I'll be in Switzerland for
don't post them here.
Thanks in advance.