1. Adrienboub

    Frequency Range 4046 Proteus

    Hello everyone, First of all sorry for my bad english. I want to simulate on Proteus FM demodulation with 4046. I know that the center frequency Fo depends on the value of R1 and C1. I try to do this application circuit and it doesn't work too: I try to change the value of Fo according to the...
  2. A

    Modding wireless RF headphones to Bluetooth headphones

    Hi guys, I have been using a pair of Sennheiser headphones for quite some time now (HDR 118). They offer good sound and sit comfortably, however they do work based on RF signals (863 - 865 MHz) and have been catching a lot of interference as of late. Instead of just getting a new pair of...
  3. N0t_S0_Sm4rt

    Circuit analysis

    Hello, please, would some good person help me with analysis of this circuit (my guess it's a FM radio). My task is to revive it, however I don't quite know how. What I'd do: 1. Connect the circuit to 9 V voltage source 2. Divide the circuit to 2 parts - AC and DC 3. Search for voltage...