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i am searching for an amplifier that can amplify 22Hz signal. The output of the amplifier can go upto 20V. This is to be fed to a copper coil antenna of 150ohms impedance. Please advice any such amplifiers.
22Hz is a very low audio frequency that you cannot transmit by itself.
Maybe you mean the radio frequency of 22MHz? Or maybe you want to make an induction charger with the receiver as another coil that is beside the transmitter coil?