Length 1 minute delay relay pull transistor circuit diagram

As shown is composed of a transistor relay delay pull circuit. Just power, 16 F capacitor voltage is zero, two transistors are off, the relay does not operate. With 16 F capaci

tor charge, over a period of time to which the voltage reaches a high level, two transistors are turned on, the relay delay pull. The delay time of up to 60s. Delay time can be adjusted by 10M resistor.

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