Universal 25/70V Transformer


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Quam's TBLU is a constant voltage line transformer with multi-tap outputs. Tap values 4W, 2W, 1W, 1/2W, 1/4W for both 70V and 25V applications.

  • Intended use: Indoor environment. Desired tap / common primary leads connected to the output of a constant voltage amplifier; secondary / common attached to a nominal 8 Ohm loudspeaker.
  • Program Material: Signal tones, voice and music


  • Primary Volts: 25/70.7V
  • Power Rating: 5W
  • Primary Taps: 5 per voltage
  • Secondary Load: 8 Ohm nominal
  • Frequency Response: 100Hz-15kHz
  • Insertion Loss: 1.0 dB - TBLU


  • Primary Connection:
    Common: 7" pre-cut
    Taps: 7" color-coded, pre-cut
  • Secondary Connection: 7" lead with 0.205" female push on connector
  • Shipping Weight: 10 oz.
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