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Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Recent content by mas1738

  1. M

    Q: Op-amp for high quality voice ??

    So you advice me not to digitize the signal, because the project will be marked by measuring the SNR at the receiver so if the analog signal will give me better SNR I will go for it, since I didn’t build the circuit yet As far as i know that the human voice has a frequency up to 3.4kHz...
  2. M

    Q: Op-amp for high quality voice ??

    Ha-ha you are right hero999 I test the op amp and the performance was bad, and actually he don’t know anything I don’t know how he got his PHD. Its an optical transceiver which transmit sound signal up to 20kHz, so it should be 20kHz
  3. M

    Q: Op-amp for high quality voice ??

    Thank you guys very much , but my lecturer said LM358 will do the job , i am not sure about ,so i will try it in the lab .
  4. M

    Q: Op-amp for high quality voice ??

    Hi Guys I want to design an optical transmitter where i want my laser to send the data in digital form ; however, the 741 chip ( as a comparator on the reciever) can not handle high rate (20KHz), so i want to know if there is an op amp that can work at 6bits transmission rate per sample where...
  5. M

    need help with Designe a padastrian traffic light

    I will be faithful If any body can find a circuit that used to control the crossing traffic light. Or if any one know how to designe a time controlled switch(switch for a period of time and then go back to its initial position).

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