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Should the aerial in use be a single wire, a good counterpoise would be four strands of 3/20 or 7/20 wire on 6 ft. A counterpoise should be slung on the same masts as the aerial, somewhere about midway between the aerial and the ground. An aerial receives vibrations from all these different wave lengths, so, it naturally follows, that if we cannot adjust the receiver to pick out one of these frequencies and pass all others to earth, we shall hear nothing but a babel of sound from our telephones, or loudspeaker, owing to the fact that all the many vibrations set up in the aerial are being converted into sound waves. In all cases of inductively coupled circuits the aerial runs to the primary coil and through it to earth. WIRELESS. (By Bert V. Cole.) Having explained the theory of tuning with a coil and slider, and also a coil and condenser, we now pass on to magnetic tuning.

All the actual tuning is done in the secondary coil, that is, the coil with the magnetically induced current. The process of selecting one frequency is known as tuning. We will now, for the time being, finish with the tuning elements, and pass along the circuit to the next part of the receiver to receive the impulses, that is the detector, or rectifier. 2. Any leak in the high tension electric cables will also interfere with clear reception. WIRELESS. (By Bert V. Cole.) Having learnt what rectification is in the crystal, we will now take the action of a valve functioning as a detector, or rectifier. Even this did not make wireless absolutely possible, but later, from experiments, Lee De Forest manufactured a valve with a grid between the filament and plate. While it is beneficial to have the faucet repaired where possible, if they are old and worn, the best thing you can do is have them replaced. In the telephone piece there are, as I have said, two small magnets, which are just sufficient to hold the diaphragm. That being said, it is not important to pay extra money for the inspection services. Beer was being brewed in Milwaukee before Milwaukee was a city or Wisconsin was a state.

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