The ST-5055A is a **Kenwood** FM stereo FM/AM tuner manufactured in the 1970s. This device was an analog audio device of its time, offering high quality radio reception performance and featuring a retro design. Below are the main features. Main Features High-sensitivity tuner: Captures AM/FM radio signals well and plays them back with stable sound quality. FM stereo function: FM broadcasts can be enjoyed in stereo, providing clear and expansive audio. Built-in analog meter: Equipped with an analog meter for use when tuning for accurate channel matching. Retro design: The retro design has a vintage 70's look and is popular among audiophiles. Sound Quality and Performance Kenwood's ST-5055A is known as one of the best performing tuners of its era, especially for its FM stereo sound quality. Its clear audio and stable reception capabilities allow users to enjoy music and news in high quality. Collector Value As vintage audio equipment, they are still gaining value among collectors and audiophiles. In particular, well-maintained and original components are often sold at high prices. [ item condition ] This is a used product. ■ There are some stains and scratches from use. FIXED and VARIABLE are both in good condition. There are no Hz deviations and it is clean. [Product Details ] Brand: SONY Model: ST-5055A Model: FM/AM Tuner ■Circuit method: Super heterodyne method FM tuner section] Antenna terminal: 300Ω balanced type 75Ω unbalanced type Reception frequency: 76MHz to 90MHz Intermediate frequency: 10.7MHz Operating sensitivity: 2.2μV (IHF) Sensitivity: 1.7μV(S/N=30dB) S/N ratio: 68dB Capture ratio：1.0dB Selectivity: 70dB(IHF) Image Disturbance Ratio: 45dB IF interference ratio: 95dB Spurious Interference Ratio: 75dB AM suppression ratio: 45dB(IHF) Frequency response: 30Hz to 15kHz, +1 to -3dB Distortion: mono: 0.4% (400Hz, at 100% modulation) stereo: 0.6% (400Hz, at 100% modulation) FM stereo separation: 35dB or better (400Hz) Output voltage/impedance: Fixed output: 750mV/10kΩ Variable output: 0 to 1.5V/1.8kΩ AM tuner section Antenna: Ferrite bar antenna with external antenna terminal Reception frequency: 530 kHz to 1,605 kHz Intermediate frequency: 455kHz Sensitivity: 46dB/m (with bar antenna) 100μV (with external antenna) S/N ratio: 50dB(50mV/m) Image rejection ratio: 70dB (1,000kHz) IF rejection ratio: 65dB (1,000kHz) Distortion ratio: 0.5 Comprehensive】[General Semiconductors used: Transistors: 21 (receiver circuit x16, attached circuit x5) FETs: 2 Diodes: 14 ICs: 2 Power supply: AC100V, 50Hz/60Hz Power consumption: 17W Dimensions: W416 x H120 x D285mm ■Weight: 4.8kg The goods will be sent by Japan Post or DHL. Please note that the goods are shipped from Japan and will take longer to arrive. Please note that the prices listed do not include any customs duties or taxes. If the goods exceed the specified size or weight, they may be sent in multiple packages.