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Lighting sound-activated switch circuit using thyristors Part 3
Source: InternetPublisher:已注销 Keywords: Sound-activated switch switching circuit thyristor Updated: 2021/12/27
The characteristics of the voice control switch are the same as Figure 2 109. A delay circuit is composed of a single-junction transistor VT2 and a resistor-capacitor element
. The delay time can be changed by adjusting the capacity of potentiometer RP3 or capacitor C3.
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