jakdedert wrote:
FWIW, I 'used' to be able to hear the horizontal frequency when I got a
round a noisy set. These days, I hear it all the time...whether I'm
around one or not (tinnitus).

I've had tinnitus tones as long as I can remember. The horizontal sweep
frequency isn't one of my built-in tones, though.

--
Dec. 6 (Bloomberg) -- Government officials and activists flying to Bali,
Indonesia, for the United Nations meeting on climate change will cause
as much pollution as 20,000 cars in a year.