Simple Telephone Recorder Circuit Schematic Diagram
Simple Electronic Applications December 12th, 2009This simple circuit diagram lets you record your phone conversations automatically. The device connects to the phone line, your tape recorder’s microphone input, and the recorder’s remote control jack. It senses the voltage in the phone line and begins recording when the line drops to 5 volts or less.
parts :
R1—————————270K 1/4 W Resistor
R2—————————1.5K 1/4 W Resistor
R3—————————68K 1/4 W Resistor
R4—————————-33K 1/4 W Resistor
C1—————————-0.22uF 150 Volt Capacitor
Q1—————————-Q222N4954 NPN Transistor
D1—————————-1N645 Diode
MISC1———————–Wire, Plugs To Match Jacks On Recorder, Board, Phone Plug
source : www.aaroncake.net
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April 2nd, 2010 at 8:53 am
no full discription for eg
what is control jerk where is memory for storing the recorded sound
June 25th, 2010 at 7:27 pm
sir may i know the conection of this stated diagram of phone recorder
June 25th, 2010 at 7:30 pm
what is the function of remote control jack
August 13th, 2010 at 8:58 am
Connect the “Mic Jack” cables to the tape recorders mic input. On a tape recorder (not a cassette deck) you usually will find a jack that says “tape control”, or equal. This connector controls if the tape will run or not. Kind of.
November 9th, 2010 at 5:55 pm
schématisé de mobile
November 9th, 2010 at 5:55 pm
schematic de nokia 1208