ECG113A Sylvania Semiconductor Silicon Dual Diode TV Horizontal AFC - J22051

The ECG113A is a type of silicon dual diode that is used in television horizontal AFC (automatic frequency control) circuits. It is a two-terminal semiconductor device that consists of two diodes connected in a back-to-back configuration. In television systems, the horizontal AFC circuit is used to maintain a stable horizontal scanning frequency.

The ECG113A dual diode is used to compare the frequency of the horizontal oscillator to the reference frequency of the TV system, and to generate a correction voltage that is applied to the horizontal oscillator in order to maintain the correct frequency.

The ECG113A dual diode is a small, compact component that is suitable for use in a variety of electronic circuits. It is made from silicon, which is a common material used in the manufacture of semiconductor devices. Silicon is known for its high resistance to heat and its ability to withstand high voltage and current levels, making it an ideal choice for use in AFC circuits.