In article ,
Terry Casey wrote:
In article , briang1
@blueyonder.co.uk says...

Yes well, I whenever convinced it was that accurate since I saw hum
bars rolling down tv screens in the 1960s.

Ah yes, I remember them well - bit our mains driven Smiths
Sectric clock was always right to the second at 8am the
following day!


I've just adjusted my mains locked large LED digital clock by a minute -
for the second time this year. First time I've had to bother - except when
the hour changes.

--
*The man who fell into an upholstery machine is fully recovered*

Dave Plowman London SW
To e-mail, change noise into sound.