Sony C-HF Type I Blank Cassette Tape - 1976-1978 US

Sony C-HF Overview

The Sony C-HF (1976-1978 US) is one of Sony's earliest consumer-grade Type I normal bias blank audio cassettes, produced for the American market during the mid-to-late 1970s. Using a standard gamma ferric oxide formulation with 120µs equalization and a measured dynamic range of approximately 52.8dB, the C-HF represents Sony's foundational blank tape lineup from the dawn of the cassette era. A rare and historically significant piece of magnetic media history. New sealed NOS condition.

Technical Specifications

• Tape Type: IEC Type I (Normal Bias)
• Bias EQ: 120 microseconds
• Formulation: Gamma ferric oxide
• Dynamic Range: ~52.8dB
• Market: United States
• Year: 1976-1978
• Condition: New sealed NOS

Key Features

• Historical Significance: Produced during the cassette format's early growth years, the C-HF is a genuine artifact of 1970s consumer audio history.
• Normal Bias: Compatible with all standard cassette decks using Type I (Normal) settings.
• Extreme Rarity: New sealed 1976-1978 US market Sony tapes are exceptionally rare survivors from nearly 50 years ago.

FAQ

Q: What deck settings does the Sony C-HF require?
A: Type I (Normal) position, EQ 120µs.

Q: What condition is this tape in?
A: New sealed NOS. Free US shipping on orders $75+. Ultra Ferric.