MALICK Posted October 8, 2003 Report Share Posted October 8, 2003 pls could u help me to design a simle circuit that will help me to detect someone who steel ma phone line,by taps.that circuit will inform with sound or any alert system,or give information to the telephone service provider.malick Quote Link to comment Share on other sites More sharing options...
flood Posted October 8, 2003 Report Share Posted October 8, 2003 Hi buddy,O.k. here is the link from the Projects secton from our cute website:http://www.electronics-lab.com/projects/telephone/001/index.htmland under Telephone you can find what your looking for. Quote Link to comment Share on other sites More sharing options...
flood Posted October 8, 2003 Report Share Posted October 8, 2003 O.k. buddy try this and you can look for more under Projects--Telephone Quote Link to comment Share on other sites More sharing options...
MALICK Posted October 10, 2003 Author Report Share Posted October 10, 2003 thanx friends!i see what i want,telephone line monitor&phone line indicator,but this i get a problem in language can some one translate in english pls!& on telephone line monitor i get a trouble where to connect the base leg of the transistor that in series with the speaker.&if some one could help me to analyse how the mathematical value of the components such as capacitor&resistor were obtained.and also how the circuit electronically works.pls help me im stack. Quote Link to comment Share on other sites More sharing options...
mixos Posted October 10, 2003 Report Share Posted October 10, 2003 I translated it in English for you.. you can find it here:http://www.electronics-lab.com/projects/telephone/001/index_en.htmlBut you could build it just by using the schematic, pcb and parts list. There is no special info in text. Quote Link to comment Share on other sites More sharing options...
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