Supex Supex SDT/3000 booster for MC cartridge early 80s. - Silver, gold and black.
Vintage Supex SDT/3000 MC Step-Up Transformer (SUT) – Serial #3319 – Made in Japan
Overview & Specifications
Up for sale is a rare vintage Supex SDT/3000 Moving Coil (MC) step-up transformer (booster). Manufactured in Japan by Supex Co., Ltd., this unit features toroidal transformers in gold-finished caps designed to match low-impedance MC cartridges.
Primary Impedance: \bm{2\,\Omega}
Secondary Impedance: \bm{47\,\text{k}\Omega}
Voltage Ratio / Gain: \bm{28.5\text{ dB}}
Frequency Response: \bm{5\text{ Hz} \sim 170\text{ kHz}} \bm{(-0.5\text{ dB})}
Serial Number: 3319
Connections: Gold-plated RCA input/output jacks and a central grounding post (GND).
Cosmetic Condition
Front: Clear lettering reading "SUPEX SDT/3000 booster for MC cartridge". Notable sticker residue/finish wear present along the bottom edge.
Top/Transformer Caps: The gold plating on the top round transformer bells exhibits age-related patina, light surface wear, and tarnishing.
Side & Rear Panels: Aluminum body shows minor edge marks/scuffs, but structural condition remains clean and solid.
Connectors & Label: Rear RCA inputs, outputs, and grounding terminal are complete and intact. Bottom specification label and serial number plate are fully readable.
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| Listed | 12 days ago |
|---|---|
| Condition | Very Good (Used) Very Good items may show a few slight marks or scratches but are fully functional and in overall great shape.Learn more |
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