This is a eletro-gravity wave AM transmitter,
where it is more likely that a modulating electric signal is coupled onto the "gravitronic" circuit via the electric field that links the crystal coils. The \(g^{-}\) current source is a \(g^{-}\) particle charged crystal.
This is a electro-gravity wave AM receiver,
where the tuned tank circuit allows only the specific carrier frequency. The low-pass filter demodulate the AM signal, and the electric field generated as the demodulated signal passes through the crystal coil is processed further electrically. The \(g^{-}\) ground (signal ground) is a depleted crystal without any \(g^{-}\) particles.
Those from electrical and electronic engineering have just rolled over dead, from laughing.