just wondering
2007-07-02 12:15:45 · 3 answers · asked by macgyver 1 in Science & Mathematics ➔ Engineering
is there a video signal involved
2007-07-02 12:37:17 · update #1
The vertical coil is driven by the output of the vertical deflection amplifier with a sort of triangle wave at a little less than 60 cycles per sec. (59.something) , so as not to be exactly the same as the powerline. The voltage here is not very high (hundreds of volts).
The horizontal deflection coil is driven with a 15 kilohertz waveform because there are some 450 lines in each frame of a picture so the horizontal frequency is much higher. To cause the electron beam to deflect this fast the voltage must be much higher too -- about 3000 volts here. This waveform is 'stolen' form the same transformer (the flyback) that is used to produce the anode voltage in the tv set (up to 30000 volts in big screen crt's).
2007-07-02 12:47:10 · answer #1 · answered by Kilroy:) 2 · 0⤊ 0⤋
Hi. A source of controlled electric current. And usually a flyback transformer.
2007-07-02 19:20:55 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋
The horizontal and vertical amplifiers.
2007-07-02 19:33:46 · answer #3 · answered by Helmut 7 · 0⤊ 0⤋