The NTE7148 is an integrated circuit in a 52–Lead DIP type package designed for use in color TVs based on the NTSC (National Television System Committee) system with an on–chip circuit for all VIF, SIF, video, chroma, and deflection signal processing.
Functions and Features:
PLL Detection (High Video and Audio Quality)
High–Gain VIF Amplifier
High Speed AGC
On–Chip APC Time Constant Switch
Simultaneous Sound IN/OUT
Video/Audio Simultaneous Muting, or Audio–Only Muting Possible