hi,
im new to the forum and need some help with this project
i have got
> an audio cable with tones from 500hz to 3000hz present
> an inductive amplifier, similar to this one http://www.maplin.co.uk/Module.aspx?ModuleNo=46536
i want to detect the presence of a tone on the audio cable without making contact with the conductors, hence the inductive amplifier
when i detect i tone between 500hz and 3000hz i want to activate an output for the duration of the tone, people have mentioned using the LM567 chip, but im told its osblete and i cant get the bandwidth required
can anyone help me with either a modiciation to my exsiting tester or a complete circuit. Im upto the standard of buildind it but not designing it and need some help
thanks
fred
http://forum.allaboutcircuits.com/editpost.php?do=editpost&p=108812
im new to the forum and need some help with this project
i have got
> an audio cable with tones from 500hz to 3000hz present
> an inductive amplifier, similar to this one http://www.maplin.co.uk/Module.aspx?ModuleNo=46536
i want to detect the presence of a tone on the audio cable without making contact with the conductors, hence the inductive amplifier
when i detect i tone between 500hz and 3000hz i want to activate an output for the duration of the tone, people have mentioned using the LM567 chip, but im told its osblete and i cant get the bandwidth required
can anyone help me with either a modiciation to my exsiting tester or a complete circuit. Im upto the standard of buildind it but not designing it and need some help
thanks
fred