| Author | Views | Views Today | Rank | Comments |
| 47,218 | 60 | ![]() |
49 |
| This nifty little circuit 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. |
Schematic |
Parts |
|
Notes |
Related Circuits |
Comments |
| this is very useful project.i liked it very much if u can any comments u can mail me. | ||
| if u dont mind pls mail me the complete info,block diagram,circuit diagram&major advantages ,applications of this project which helps me in doing my mini project | ||
| would youmind pls mail me the complete info,block diagram,circuit diagram&major advantages ,applications of this project which helps me in doing my mini project. what is remote control jack stands here for? | ||
| where should we connect the inputs (on which phone line) | ||
| would youmind pls mail me the complete info,block diagram,circuit diagram&major advantages ,applications of this project which helps me in doing my mini project | ||
| please tell me the circuit analysis and about remote control jack | ||
| i just need more information about this circuit because i have to design it ,,and i need to know what each part of this circuit do ? wait 4 ur reply ,,and i hoep it come soon | ||
| if u dont mind pls mail me the complete info,block diagram,circuit diagram&major advantages ,applications of this project which helps me in doing my mini project | ||
| hi can u help me to do this project.by sending it's complete info. & circuit analysis & its major advantages to my mail id. thanks. | ||
| Hi, Iam rajkumar from chennai, India.I am ruing a concern in chennai.so I feel like some problem was going on with our workers pl. send the details of thie phone recorder to record the conversation between the workers nd the clients | ||
| The last 10 comments are currently shown. Show All Comments. |
If you would like to leave a comment, you can do so using the form below. Comments can be things like suggestions, successes or failures, improvements, similar circuits, error reports, an answer to a previous commenter's question, or anything in between. However if you would like to ask a question it is suggested that you use the forum instead. The forum provides a more robust environment for discussion.
Important: If you post a technical question here, there is no guarantee it will be answered. All technical questions should be posted to the forum. The owner of this site generally does not answer questions in comments.
All comments are subject to approval before they are displayed here, so your comment will not appear immediately. This is done mainly to prevent spam and other abuse. If you wish to remain anonymous, simply enter "anonymous" for your name and/or email.