The STK413-430 remains a favorite for DIY enthusiasts because it packs three channels of Class AB power into a single component. By following the standard application circuit and ensuring robust cooling, you can achieve professional-grade audio performance with minimal external components.
Typically 50W + 50W to 100W + 100W (depending on VCC). Operating Voltage: Dual rail supply (±VCC). stk413-430 circuit diagram
The STK413-430 is a capable and reliable audio amplifier module that represents the height of hybrid IC technology from its era. While it is now obsolete, understanding its circuit diagram, pin functions, and application is still valuable for repairing vintage hi-fi equipment or for hobbyists looking to build a simple, high-quality stereo amplifier. By following the specifications for its power supply, providing adequate cooling, and applying good PCB layout practices, the STK413-430 can provide 20 watts of clean audio power per channel for years of reliable service. The STK413-430 remains a favorite for DIY enthusiasts
The STK413-430 is pin-compatible with other members of the STK4101-4102 series, allowing for easy interchangeability to change power ratings without re-designing the PCB. Operating Voltage: Dual rail supply (±VCC)
Decreasing the value of the feedback resistor increases the gain, while increasing it lowers the gain but reduces distortion. 3. Power Supply Section (Split Rail) The STK413-430 requires a symmetrical split power supply ( +VCCpositive cap V sub cap C cap C end-sub −VCCnegative cap V sub cap C cap C end-sub