This post explains for the semiconductor L146CB.
The Part Number is L146CB.
The function of this semiconductor is High Precision High Voltage Regulator.
Manufacturers : ETC
Preview images :
L146CB is a monolithic integrated programmable voltage regulator in 14 lead dual in-line plastic package and 10 lead Metal Can (TO-100 type). It is made with high voltage technology and provides internal current limiting and thermal shut down protection, when current exceeds 150 mA an external NPN or PNP pass element may be used. Provisions are made for adjustable current limiting and remote shut down. The L146CB is intended to widen the application range of L123 up to 80V. […]