Which of the following silences the audio amplifier stages until a carrier is detected?
A. TRF
B. S meter
C. Conversion oscillator
D. Squelch circuits
D
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A) corn B) grass C) wheat D) oats
List three operating problems associated with operating a boiler.
What will be an ideal response?
____ is a term that refers to the rate at which wireless devices can transmit data.
A. Throughput B. band C. CSMA D. TDMA
In the full-wave power supply shown in Figure P9.38,
n = 0.1
C = 80 ?F Ro = 1 k?
vline = 170 cos(377t) V
The silicon diodes are 1N914 switching diodes (but used here for AC-DC conversion) with the following performance ratings:
Pmax = 500 mW at T = 25?C
Vpk?rev = 30 V
The derating factor is 3 mW/°C for 25°C < T ? 125°C and 4 mW/°C for 125°C < T ? 175°C.
a. Determine the actual peak reverse voltage across each diode.
b. Are these diodes suitable for the specifications given? Explain.
