Radio Engineering, Volume 2Chapman & Hall, 1949 - Radio |
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adjusted aerial amplifier amplitude anode applied attenuation audio frequency audio-frequency balanced band-pass filter beat oscillator bridge C₁ C₂ capacity cathode characteristics circuit coil condenser connected constituted coupling cross-talk curve cut-off frequencies decibels detector determined diode DIRECTION FINDER earth effect electrostatic induction equal equation f₁ feedback fourpole grid harmonic high-pass filters horizontally polarized I.F. filter I.R.E. PROCEEDINGS I₁ image impedance inductance insertion loss interference intermediate frequency kc/s L₁ loop low-pass filters m-type matrix maximum Mc/s measured meter method mid-series mid-shunt mixer modulation negative noise ohms output parameters pass band peak phase shift polar diagram programme R₁ R₂ RADIO range ratio reactance receiver resistance screen shown in Fig shunt arm sideband signal frequency superheterodyne receiver terminals 1,1 terminals 2,2 transfer vector transformer transmission transmitter triode tuned V₁ V₂ valve voltage voltmeter volts Z₁ Z₂ zero