From S. T. DOBBS
If the incoming telephone wires to John Dowding’s house (Letters, 2
January) run close to his electricity meter, it is possible that the noise
is due to electromagnetic transmission by the spark caused by an Economy
Seven meter switching from day to night units, which happens at such an
ungodly hour. The random nature of the phenomenon may be determined by whether
he happens to be awake or not at the time.
S. T. Dobbs Market Harborough Leicestershire
