@aetherlogic0: How a Touch Plate Triggers an LED & Buzzer | BC547 + BC557 Circuit Explained#TouchSensor #BC547 #BC557 #Electronics #CircuitDesign

AetherLogic
AetherLogic
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Saturday 26 September 2026 17:44:24 GMT
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saustinnccnnet
notchoppe :
No. The plate goes to the collector of the first transistor, Q1, not the base. Touching the plate turns on the second transistor, Q2, which temporarily turns on the first transistor through the 47u capacitor, C1, forming a temporary latch. Q3 gets turned on when Q2 turns on giving current to D1 and the buzzer. Eventually C1 discharges and the buzzer and LED go off.
2026-09-27 06:23:35
7
valleyofthereal
Valley Of The Real :
is the touch plate a copper plate?
2026-09-27 04:09:46
0
bob.qwerty.gen.x
Bob Qwerty Gen X :
No load resistor for the LED.
2026-09-26 18:51:48
2
average.gooner3
Avegone… :
Can you please do an explanation on how a slayer exciter circuit works 🙏
2026-09-27 06:28:29
1
daddycool.h7i30pxa
DaddyCool🇳🇿 :
Where does the cap get its charge?
2026-09-26 23:00:12
1
unknowwwww377
unknow :
[Sticker]
2026-10-01 03:00:33
1
buscar_ea_ltd
BUSCAR EA OFFICIAL ✅️ :
nice electrical engineering lesson 👍
2026-09-27 07:50:41
1
douglaswardle
Douglas Wardle572 :
cool
2026-09-28 16:56:32
2
owiti84
owiti :
next give us self latching with touch
2026-09-26 20:42:43
0
arthur.lillyblad
Arthur Lillyblad :
How to you keep the circuit on? Good video!
2026-09-26 20:31:25
1
billbot6
SPICY STIR ⚕️ :
It's simple, by using AND gates transistors
2026-09-27 03:29:03
5
luisduran0170
luisduran0170 :
explain it through the schematic. not through the device setup.
2026-09-26 23:59:32
1
user6635024149950
summer :
[Like][Like][Like]
2026-09-26 20:45:01
0
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