Intelligence activity instrument
An intellectual and intellectual technology, applied in the electronic field, can solve the problems that cannot be quality education, etc., and achieve the effect of improving quality education services, brilliance, and sexual interest
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[0080] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 A specific implementation circuit is formed.
[0081] 1. Select components
[0082] Choose 4069 for the gate circuit of the answering logic, choose 4060 for the counter of the display circuit, choose the one-way type for the switch thyristor of the display circuit (two-way can also be used, but it only increases the cost), the start switch used by the host and the participants use The answering switches are all of the type without self-locking.
[0083] 2. Detection components
[0084]Check the thyristor to eliminate bad thyristors. The method of inspection is to use a multimeter to dial the ohmmeter and it is in the *1 gear, (because the output current of this gear is large, it can reach the self-holding current of the thyristor) , then the red test lead is connected to the cathode of the thyristor, and the black test lead is connected to the anode and the control electrode at the same time. SCR.
[0085]...
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