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Std EditionEW SCE :- cell phone detector

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License: Public Domain

Published Time:2021-04-04 15:12:14
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Description

The Op-amp part of the circuit acts as the RF Signal Detector while Transistor part of the circuit act as the indicator. The capacitors collection along with the antenna are used to detect RF Signals when a cell phone makes (or receives) a phone call or sends (or receives) a text message.

Op-Amp reads the signals by converting the rise in current at input to voltage at output and the LED will be activated.

Documents

CELL_PHONE_DETECTOR_CIRCUIT

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ID Name Designator Quantity
1 PIEZO_BUZZER PZ1 1
2 555_BJT_EE U3 1
3 100K R2 1
4 LED-R LED1 1
5 CA3130EZ U1 1
6 0.22u C3 1
7 0.1u C6,C7 2
8 0.01u C8 1
9 Sin(500 100m 0) XFG1 1
10 2450AT18A100E AE1 1
11 100uF C4 1
12 2.2M R1,R3 2
13 BC548A U4 1
14 4.7UF-16V C9 1
15 47p C5 1
16 1k R4 1
17 12k R5 1
18 15k R6 1
19 CR2032-BS-8-1 B1 1
20 22pF C1,C2 2

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