Description
High-Precision Stereo Voltage Amplifier Module
The STK3082 is a high-grade thick-film hybrid integrated circuit manufactured by Sanyo. Unlike standard power modules, the STK3082 serves as a voltage amplifier stage specifically designed to drive powerful output stages ranging from 80W to 90W per channel.
This IC is a critical component in many premium vintage Hi-Fi amplifiers and receivers, providing the necessary gain with extremely low distortion and excellent phase characteristics.
Key Technical Features:
- Application: Voltage amplification for 80W to 90W AF power amplifiers.
- Configuration: 2-Channel (Stereo) in a ZIP-15/SIP package.
- Low Distortion: Features a built-in current mirror circuit to achieve typical THD as low as 0.005%.
- Power Supply: Designed for dual/split supplies (Maximum ±65V; Recommended ±50V).
- Frequency Response: Optimized for high-fidelity audio reproduction across the full audible spectrum.
Installation Tips:
The STK3082 is often the "brain" behind the power stage. When replacing this unit, it is highly recommended to check the emitter resistors and output transistors in the final power stage to ensure they haven't failed, as a fault there can damage a new STK3082 immediately.
Note: Ensure the power supply is fully discharged before installation to avoid static or surge damage to the hybrid substrate.