Servicing by Signal Tracing |
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Page 227
... signal level of another , more than twice the audio signal level would appear at the output terminals of the volume expander . The amount by which the differences in level between two signals is amplified depends upon the posi- tion of ...
... signal level of another , more than twice the audio signal level would appear at the output terminals of the volume expander . The amount by which the differences in level between two signals is amplified depends upon the posi- tion of ...
Page 230
... signal should be weak at point 3 , due to filtration by the .3 - uf condenser , but the d - c voltage resulting from rectification may be checked at this point and point 4. Increasing the receiver input signal level or the percentage ...
... signal should be weak at point 3 , due to filtration by the .3 - uf condenser , but the d - c voltage resulting from rectification may be checked at this point and point 4. Increasing the receiver input signal level or the percentage ...
Page 272
... signal is indi- Icated on the tuned v - t voltmeter . A reference level is obtained in the same manner as for normal signal tracing . The signal generator is then connected to point 3 , without changing the signal generator attenuator ...
... signal is indi- Icated on the tuned v - t voltmeter . A reference level is obtained in the same manner as for normal signal tracing . The signal generator is then connected to point 3 , without changing the signal generator attenuator ...
Contents
WHAT IS MEANT BY SIGNAL TRACING?1 | 6 |
SIGNAL AMPLIFICATION28 Types of Amplifiers | 29 |
from Triode Tube to Load49 Amplification in Tetrodes | 55 |
Copyright | |
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Common terms and phrases
amplifier stage amplifier tube amplitude antenna audio signal avc voltage by-pass condenser carrier cathode cause checked Class A amplifier connected control grid control voltage coupling d-c component d-c voltage defect diode load distortion feedback filter grid bias grid circuit grid current grid leak grid voltage i-f amplifier i-f signal i-f stage i-f transformer increase input circuit input signal intermediate frequency load impedance load resistance maximum mixer modulated mutual conductance normal oscillator frequency oscillator signal pentode picture tube plate circuit plate current plate resistance plate voltage power supply primary quency r-f tube radio receiver rectifier resistor resonance result second detector secondary shown in Fig signal level signal tracing signal voltage superheterodyne superheterodyne receiver sync pulses test oscillator test points test probe tetrode tion triode tuned circuit variation video signal voice coil voltage amplifiers voltage at point voltage drop volts volume control winding