XH-OPT-SE30 30W Single-Ended Tube Output Transformer (300B / KT88) AutoCAD GA Blueprint

R-Core & Audio Transformers · Tube Audio Output Transformers

XH-OPT-SE30 30W Single-Ended Tube Output Transformer (300B / KT88)

30W single-ended vacuum tube audio output transformer (OPT) optimized for 300B, 2A3, KT88, and 211 Class-A triode amplifiers. Wound on imported Nippon Steel Z11 (27Z130) silicon steel laminations with 4P3S interleaved sandwich structure, precision 0.08mm anti-saturation air gap, and 15Hz-45kHz (±1dB) linear frequency response.

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Thông số kỹ thuật

Power Rating 30 W
Core Type Nippon Steel Z11 (27Z130) Interleaved
Magnetic Flux Leakage < 10 mG
Dielectric Withstand 4,000 V AC Primary-Secondary (1 min)
Insulation Resistance > 100 MΩ @ 500V DC
Outer Dimensions (L×W×H) 96 × 85 × 82 mm
Mounting Hole Centers (A×B) 80 × 68 mm
Net Weight 2.65 kg
Secondary Options 0 - 4Ω - 8Ω (Secondary OFC Winding)
Lead Wires High-Temperature PTFE Teflon Silver-Plated (300mm)

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XH_OPT_SE30_TUBE_OUTPUT_TRANSFORMER

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2026-10-09T06:05:35.945517+00:00

Technical Highlights

  • Zero mechanical hum or acoustic vibration — continuous strip has no stamped lamination burrs or loose gaps.
  • No-load exciting current is less than 10% of traditional EI transformers, with full-load temperature rise ≤ 35K.

Application Scenarios

  • High-end audiophile DACs, phono preamplifiers, headphone amplifiers, tube power amplifiers, and low-noise precision medical instruments.

Key Features

  • Continuous circular-cross-section core wound from premium Nippon Steel grain-oriented silicon strip.
  • Twin balanced bobbins provide 100% galvanic symmetry and extremely low inter-winding capacitive coupling (<15 pF).
  • Annealed OFC copper perimeter foil shield band virtually eliminates stray magnetic field radiation (<5 mG).

Câu hỏi thường gặp

Specify primary impedance (2.5kΩ, 3.5kΩ, or 5.0kΩ) and secondary taps (4Ω / 8Ω / 16Ω) for factory-matched pairing.

JISC 5504 / IEC 60268 audio standard compliance. Hi-pot tested at 3,000V DC primary-to-secondary.

Black epoxy potted enclosure with bell end covers. Shipped in pairs with matched impedance curves.

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Tiêu chuẩn & Tuân thủ

JISC 5504 / IEC 60268 audio standard compliance. Hi-pot tested at 3,000V DC primary-to-secondary.

Đóng gói, Giao hàng & Dịch vụ

Black epoxy potted enclosure with bell end covers. Shipped in pairs with matched impedance curves.

Specify primary impedance (2.5kΩ, 3.5kΩ, or 5.0kΩ) and secondary taps (4Ω / 8Ω / 16Ω) for factory-matched pairing.

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