Schematic of the bounceless switch/clock generator on 2 Hz and 5 KHz (and manual) to drive a TTL logic circuit (5 V logic). With a normal switch it is "impossible" (= difficult) to add a logic voltage (1) to a logic circuit, due to the characteristic of the switch, that can "bounce" for instance 3 times when you push it. In that case the logic circuit does not get one signal but 3 signals (3 x a logical 1) added. And logic circuits see everything logic...., so it acts as if it received 3 times a logical 1. Therefore the logical "1" in this circuit is added by means of a flipflop, that only switches 1 time, no matter if you push the button 1 or x... times. Thats the first mode of this schematic. In the other modes the 7400 chip generates a squarewave of 2 Hertz and 5 Kilohertz to drive the logic TTL chip, so it acts as a clock generator. If you watch this video on another channel then You Tube, please check YouTube for possible updated/changed content.
Tags: TTL logic chip 7400 radioam232 NL11561 clock generator bounceless switch 2Hz 5KHz manual
