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Hammond Manufacturing Interstage Tube Drivers

Hammond Manufacturing Interstage Tube Drivers are available in two styles: the open-style 124 Series with minimum 5" long primary leads, and the closed-style 126 Series with minimum 8" long leads. The 126 Series is designed for driver use only in single-ended tube output amplifiers. The drivers replace coupling capacitor circuits for improved sound, while the bifilar wound windings provide exceptional coupling and bandwidth. The 126 Series features a gapped core to support the specified DC bias current, along with 20Hz to 20kHz minimum frequency response and 400VDC maximum working voltage. The modules are hipot tested at 1000VDC.

The 124 Series is designed for general use or as a replacement in push-pull and phase inverter tube driver circuits. The drivers are not recommended for single-ended applications because the modules have no gap for DC bias current in SE mode. The 124 Series offers a minimum frequency response of 150Hz to 15kHz (+1/-3dB at 1kHz). The 124C part is the coil only for experimenters who want to use their own iron.

All variants of Hammond Manufacturing Interstage Tube Drivers are RoHS compliant.

Features

  • Both series are RoHS compliant
  • 124 Series
    • For general purpose or replacement use in push-pull or phase inverter tube driver circuits
    • Not recommended for single-ended applications because they have no gap for DC bias current present in SE mode
    • Open style with minimum 5" long primary leads
    • 150Hz to 15kHz minimum frequency response (+1/-3dB at 1kHz)
    • 124B is same as 124A except for 49% nickel laminations for greater fidelity
    • 124C is coil only for experimenters who want to use their own iron
  • 126 Series
    • For driver use only in single-ended tube output amplifiers, replaces coupling capacitor circuits for improved sound
    • Closed style with minimum 8" long leads
    • Bifilar wound windings for exceptional coupling and bandwidth
    • 20Hz to 20kHz minimum frequency response (±1dB max. ref. 1kHz)
    • Gapped core to support the specified DC bias current
    • 400VDC maximum working voltage
    • Hipot tested at 1000VDC
    • Core uses high-grade silicon laminations (29M6)
    • 3lb 2oz weight

Schematics

Hammond Manufacturing Interstage Tube Drivers

Datasheets

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Publicado: 2023-02-25 | Actualizado: 2023-03-28