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Dukane Model 3A55 MIc input transformer, for Dukane 1E460A tube amplifier.

An octal plug in transformer for the Dukane Model 1E460A powered Tube PA amplifier. These have been tested for continuity as per the pinouts.
$169.00
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There is little data available on these transformers, other than they are designed to match low impedance balanced mic inputs, 600Ω ~ 150Ω to high impedance tube preamplifier circuits.

The pinouts are as follow:

  • 1 external case.   
  • 2 NC according to schematic, but is connect to pin 3.
  • 3 Input center tap
  • 4 & 5 Input
  • 6 & 7 Output
  • 8 internal shield.  

 DMM Readings:

  • 3 to 4: 11.6Ω
  • 3 to 5: 10.2Ω
  • 4 to 5: 20.7Ω
  • 7 to 8: 2KΩ (varies)
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