"Yellow Submarine" <(E-Mail Removed)> wrote in message
news:hxV2f.231$(E-Mail Removed)...
> I want to monitor what my teen kids are saying on the telephone from
> time to time. I've set up an extension with an earphone to listen in,
> but when I turn it on there's an audible click on the other phone that
> my kids will hear. Eventually they will figure it out.
>
> Are there any ways to minimize or eliminate the cues that an extension
> has been picked up, short of using an automatic recording device?
>
> --
> YS
>
>
2 early memories , as a small kid, obviously destined to go into electronics
1/ Unscrewing the cap off the drop cord light switch in my bedroom,
learnt with a shock that just because a switch is off it is still live if
touched in
the wrong place. I vaguely remember thinking that electricity was only
dangerous when it was being used and safe when it was not being used.
2/ Parental rows , could tell because of the elevated voices, but annoyingly
could not make out what they were about as through closed doors.
Out of a couple of long lengths of thin cotton covered wire , probably a
carbon granule microphone and a Xtal earpiece or ex-military high impedance
headphone made a crude bug. Unfortunately it worked but it didn't work that
well.
--
Diverse Devices, Southampton, England
electronic hints and repair briefs , schematics/manuals list on
http://home.graffiti.net/diverse:graffiti.net/