| 摘要 |
PURPOSE:To reduce the capacity of the capacitor in a lagging circuit, by driving the both transistors of a differential amplifier with an emitter follower and at the same time obtaining an angle of phase utilizing the difference of signals obtained from the emitter. CONSTITUTION:The emitter-earthed transistors Q8 and Q4 are connected to the bases of a differential amplifier's transistors Q1 and Q2 via the resistances R4 and R5, respectively. Then the point of connection between the resistance R1 and the capacitor C1 of a lagging circuit is connected to the base of the transistor Q4. |
