Television Reception Technique |
From inside the book
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Page 4
... obviously to trace out a further line . It could do this by returning in a reverse direction or alterna- tively , as soon as the spot had completed the traverse of one line , a further spot could be arranged to scan the next line , the ...
... obviously to trace out a further line . It could do this by returning in a reverse direction or alterna- tively , as soon as the spot had completed the traverse of one line , a further spot could be arranged to scan the next line , the ...
Page 7
... obviously be some reason for using ultra- short wavelengths . A little investigation soon shows why this is ... obvious that the frequency of transmission must be greater than the highest side - band or modulation . frequency which is ...
... obviously be some reason for using ultra- short wavelengths . A little investigation soon shows why this is ... obvious that the frequency of transmission must be greater than the highest side - band or modulation . frequency which is ...
Page 43
... obviously a standard network would be useless . Accordingly , the diode load must have a low value . This may be anything from about 1 500 to 5 000 ohms . The value chosen depends very largely upon the type of diode used for ...
... obviously a standard network would be useless . Accordingly , the diode load must have a low value . This may be anything from about 1 500 to 5 000 ohms . The value chosen depends very largely upon the type of diode used for ...
Common terms and phrases
30 per cent Accordingly adjusted aerial Alexandra Palace ALTERNATING CURRENT amplifier amplifying valves amplitude anode anode load anode voltage application network applied arrangement B.Sc bias capacitance carrier value cathode tube characteristic co-axial co-axial cable coil condenser conductor connected control grid correct coupling D.Sc decoupling deflection demodulator diode diode load dipole effect ELECTRICAL electronic electrostatic tube employed ENGINEERING feeder fly-back frame pulses frame scan frame synchronizing frequency changer gas relay impedance impulses inductance input interlace intermediate frequency light line and frame line scan linear M.Sc magnetic modulation necessary obtained obviously ohms operating oscillator output pentode picture PITMAN possible potential potentiometer PRACTICAL produce raster reception resistance screen Second Edition shown in Fig signal sound spot suitable superheterodyne receiver Synch synchronizing circuit synchronizing pulse telephony television Third Edition transmission line transmitted tuned circuit TUNING SIGNAL variation vision receiver volts wave-form wavelength whilst