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18. The amplifier in Figure 6-54 has a variable gain control, using a 100 2 potentiometer for Re with the wiper ac-grounded. As the potentiometer is adjusted, more or less of RE is bypassed to ground, thus varying the gain. The total Rg remains constant to dc, keeping the bias fixed. Determine the maximum and minimum gains for this unloaded amplifier. 19. If a load resistance of 600 is placed

18. The amplifier in Figure 6-54 has a variable gain control, using a 100 2 potentiometer for Re with the wiper ac-grounded. As the potentiometer is adjusted, more or less of RE is bypassed to ground, thus varying the gain. The total Rg remains constant to dc, keeping the bias fixed. Determine the maximum and minimum gains for this unloaded amplifier. 19. If a load resistance of 600 is placed

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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18. The amplifier in Figure 6-54 has a variable gain control, using a 100 2 potentiometer for Re with the wiper ac-grounded. As the potentiometer is adjusted, more or less of RE is bypassed to ground, thus varying the gain. The total Rg remains constant to dc, keeping the bias fixed. Determine the maximum and minimum gains for this unloaded amplifier. 19. If a load resistance of 600 2 is placed on the output of the amplifier in Figure 6-54, what are the maximum and minimum gains? Muk Sim 2012 2009 T Spice FIGURE 6-54 G 10 μF www +1₁ R₁ 12 ΚΩ R₂ 3.3 ΚΩ Vcc +8 V 1₁ Re 330 Ω RE PROBLEMS + 313 HE 10 μF Boc=B=150 100 Ω C₂ 100 μF AME
Transcribed Image Text:18. The amplifier in Figure 6-54 has a variable gain control, using a 100 2 potentiometer for Re with the wiper ac-grounded. As the potentiometer is adjusted, more or less of RE is bypassed to ground, thus varying the gain. The total Rg remains constant to dc, keeping the bias fixed. Determine the maximum and minimum gains for this unloaded amplifier. 19. If a load resistance of 600 2 is placed on the output of the amplifier in Figure 6-54, what are the maximum and minimum gains? Muk Sim 2012 2009 T Spice FIGURE 6-54 G 10 μF www +1₁ R₁ 12 ΚΩ R₂ 3.3 ΚΩ Vcc +8 V 1₁ Re 330 Ω RE PROBLEMS + 313 HE 10 μF Boc=B=150 100 Ω C₂ 100 μF AME
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