It wouldn't need to be resistive leakage either - there may be enough
capacitance between the wires in the loop cable to produce the effect.
RP

On 16/03/06, Alan B. Pearce <A.B.Pearce@rl.ac.uk> wrote:
> >What happens is the bridge rectifier ahead of the
> >oscillator circuit very slowly charges any filter
> >capacitor there causing the voltage on the output
> >side of the bridge to slowly climb until it reaches
> >some point at which the oscillator tries to start.
>
> While discussing it with a colleague after sending that email, I realised
> that both the lights that do this are on 2-way switches - it also happens
> that these two bulbs are the only ones of that model that I have. I suspect
> that there is enough leakage through the 2-way switch system for the charge
> to build up as you describe.
>
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