In reply to  Robin van Spaandonk's message of Wed, 31 Oct 2007 13:36:01 +1100:
Hi,
[snip]
I wrote:
>If the circuit really is OU, then perhaps the signal source can be replaced 
>with
>a small on board oscillator comprising a single HF transistor. It should draw
>it's power from the same connections as the LEDs, and it's output should be
>coupled to the wire that currently supplies the connection from the signal
>generator. It may initially need a battery connected across the power leads of
>the oscillator to get it going, but once running it should be possible to 
>remove
>the battery.
[snip]
Actually, it may be even simpler. Since we are assuming that the circuit itself
is already an energy amplifier it may be enough to just couple a quartz
oscillator crystal between the LEDs and the signal input wire.

Regards,

Robin van Spaandonk

The shrub is a plant.

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