【Overview】 ・This item is a repair and restoration of a junk item from approximately 50 years ago. Although the normal operation of all functions has been repeatedly confirmed, it is being sold as a junk item due to its age. Due to the recent increase in return scams, we do not accept returns. However, there are occasional instances of individuals making excessively detailed complaints and demanding returns. Please refrain from purchasing if you cannot adhere to the "no claims, no returns" policy. 【Product Description】 Product: Integrated Amplifier Manufacturer: SONY Model Number: TA-313 Release Date: Around 1978 Price: Unknown 【Appearance】 ・The front panel is very clean and free of rust, but there is some rust on a portion of the top panel of the chassis. However, the paint is not peeling, and there are no dents, so it is hardly noticeable. Considering that it is a device from approximately 50 years ago, I believe it is in good condition. 【Repairs and Adjustments】 ・Disassembly and cleaning of the preamplifier board and power amplifier board ・Tone amplifier circuit repair ・Mid-stage differential amplification circuit repair ・Final stage power hybrid IC, DC bias current adjustment ・Cleaning of function keys, volume, etc. 【Operation Check】 ・This model was released at the time as a system component stereo, and it features a large power meter. ・All functions, including the PHONO equalizer amplifier, are operating normally. 【Sound Quality Check】 ・The noise and distortion are low enough that they are not noticeable to the ear, and I feel that it sounds good for an amplifier from approximately 50 years ago, and the large power meter looks glamorous. 【Accessories】 ・None