on the new class b 2 wire smoke detectors why is the common separate.?
LOL! What does this have to do with recreation?! It was a good laugh though and if you put it in the right category and find the question again, I might answer.
Electric current flowing in the coils of the tape head creates a fluctuating magnetic field. This causes the magnetic material on the tape, which is moving past and in contact with the head, to align in a manner proportional to the original signal. The signal can be reproduced by running the tape back across the tape head, where the reverse process occurs – the magnetic imprint on the tape induces a small current in the read head which approximates the original signal and is then amplified for playback. Many tape recorders are capable of recording and playing back at once by means of separate record and playback heads in line or combined in one unit. Modern professional recorders usually use a three-motor scheme. One motor with a constant rotation speed provides traction for the capstan. This, usually combined with a rubber pinch roller, ensures that the tape speed does not fluctuate. Of the other two motors, one applies a very light torque to the supply reel, and the other a greater torque to the takeup reel, to maintain the tape's tension. During fast winding operation the pinch roller is disengaged and the reel motors provide the necessary power. The cheapest models use a single motor for all required functions, coupled to the capstan and reel spindles as needed with mechanical clutches and belts. There are also variants with two motors, in which one motor is used for rewinding only.
make sure its charged turn on make sure space on hard drive press rec red light should come on point and record :)
