The MID400 is a AC line to logic Power Line Monitor Optocoupler. Meaning, the output of the IC goes low whenever it detects an AC voltage and goes high when no AC voltage is present.
The NTE987 is a Low power Quad Op-Amp that can operate even in low voltages like 3V. It has differential input stage and a wide operating voltage of 3V to 32V.
LM565 is a general purpose PLL (Phase Locked Loop) IC designed for demodulation, frequency multiplication and frequency division. The device mainly consists of two components, one is voltage controller oscillator and other is phase detector.
TDA7265 is a 25 Watt + 25 Watt stereo audio amplifier IC. The chip is a class AB dual audio power amplifier in Multiwatt package specifically designed for high quality sound application as music centers and stereo TV sets.
LM747 is a general purpose dual operational amplifier IC and is a member of ‘LM xx’ family. The ‘LM xx’ series are integrated circuits designed by National Semiconductor.
LM258 is dual operational amplifiers IC and is a member of ‘LMxx’ family. The ‘LM’ series originated with integrated circuits made by National Semiconductor.
LM4558 is an IC consists of Two General Purpose Operational Amplifiers and is a member of ‘LMxx’ family. The LM series originated with integrated circuits made by National Semiconductor.