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Posts tagged Sweeping Tone Alarm Beeper

Sweeping Tone Alarm Beeper

Sweeping Tone Alarm Beeper using 4069, TIP29C, NECD882

2N3055 MJ2955 Schema and Layout for PA

2N3055  MJ2955 Schema and Layout for Audio

Indicator led circuit for human error

Icator led circuit for human error Indicator led circuit diagram for human error rate prediction power supply using 741 Power supply short-circuit and open-circuit protection LED Current Error

PLC Programming Logic Controllers

PLC Programming Logic Controllers

High voltage op amp

high voltage op amp using UA741 The op-amp UA741 is wired to operate in three frequency ranges- high, medium and low. The circuit is designed such that the circuit produces +/-20 dB boost or attenuation for 50Hz,1KHz and 10Khz by varying POT’s R2. The maximum amplification for any of these bands at maximum supply voltage […]

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