Light control indicator circuit
Source: InternetPublisher:消失的歌 Keywords: Indicator light light control photoresistor Updated: 2021/11/23
When there is light during the day, the indicator light (light-emitting diode) VL goes out; after dark, the indicator
light lights up. It uses a capacitor step-down circuit and consists of triodes VTi, VTz, etc. to form a complementary multivibrator. Use photoresistor
RG as the detection element. MG45 type photoresistor , the bright resistance is not more than 20k, Ot, and the dark resistance is not less than 20Mn.
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