Experiment #3

All data were sketches of the signal.  Pictures taken of each.

Experiment #4

2N2222A Transistor

Resistance (kΩ)            IB (μA)             IC (mA) 电阻（kΩ） I B (μA) I C (mA) 900                              4.6                   0.65 800                              5.0                   0.73 700                              5.9                   0.84 600                              6.8                   0.98 500                              8.1                   1.17 400                              10.0                 1.45 300                              13.0                 1.89 200                              18.5                 2.70 100                              32.2                 4.67 40                                56.8                 6.95

Part 2

R_L = 0              V = 4.12 D.C. volts

R_L = 99 Ω        V = 2.071 D.C. volts

“Bare” Source across the 20 kΩ resistor is 2.43 V.

Part B Figure 4

R_B1 = 13000k Ω

R_B2 = 100 k Ω

R_L                    I_C                     I_B

(kΩ)                 (mA)                (mA)

1                      0.59                 0.42

2                      0.30                 0.70

3                      0.20                 0.81

4                      0.16                 0.86

5                      0.13                 0.89

6                      0.11                 0.91

8                      0.07                 0.94

10                    0.07                 0.95

Part. C

V_B = 0.795 V

V_E = 0.201

V_C = 0.256 V

R_L = 3.75 k Ω

R_E = 375 k Ω

R_B1 = 6.75 k Ω

R_B2 = 675 k Ω

Lab #5

Op. Amp. Lab

All pictures of signals.

Lab # 6

Part I.

R_cutoff = 700 kΩ

R_F = 900 kΩ

Frequency = 300 Hz

Part II.

R_F = 8 kΩ

Frequency = 15376 Hz

Part III.