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Figure 3H.—Unijunction sawtooth generator.
IN ANSWERING QUESTIONS 3-55
THROUGH 3-59, REFER TO FIGURE 3H.
3-55. The output in the circuit is taken across
what component.
1.
R1
2.
B2
3.
R1
4.
C1
3-56. What is the discharge path for C1?
1. C1, R1, VCC, ground, and C1
2. C1, emitter B2, VCC, ground, and C1
3. C1, B1, emitter, and C1
4. C1, B1, B2, VCC, ground, and C1
3-57. What part of the waveform is sweep
time?
1. A to D
2. B to C
3. C to D
4. C to E
3-58. What is the action of C1 when the
emitter-to-B1 junction is (a) reverse
biased and (b) forward biased?
1. (a) Charging
(b) Discharging
2. (a) Discharging (b) Charging
3. (a) Charging
(b) Charging
4. (a) Discharging (b) Discharging
3-59. To obtain a more stable output
frequency, you could modify the circuit
by applying (a) what type of triggers to
(b) what circuit element.
1. (a) Positive
(b) B1
2. (a) Positive
(b) B2
3. (a) Negative
(b) B2
4. (a) Negative
(b) B1
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