Attach metal plates at the end of each tube. These can be about one foot square. Drive the antenna with coaxial cable in the middle. Run a wire from the center of each PVC tub out to the metal plates. Run the wire in the middle of the tubes.
Scalar detection occurs in a non-linear transistor amplifier.
The base emitter junction of a transistor if properly biased will act as a great scalar detector. The best transistors for scalar detection are surface- barrier transistors although other transistor circuits can be made to perform Page 12 quite will. When we are using scalar signals in the audio range, an ordinary audio amplifier can be modified to detect scalar signals. Minto connected his dipole leads directly to the base and emitter of the first input transistor of an audio amplifier. The transmitter can be a simple modulated audio oscillator.