125SE Series Single Ended Tube Output Transformers

125SE Series Single Ended Tube Output Transformers

Features

  • Designed for general purpose or replacement use (not Hi-Fi), in single ended, tube output circuits.
  • Frequency response: 100 Hz. - 15 Khz at full rated power (+/- 1db max. - ref. 1 Khz).
  • For full frequency response (20 Hz. to 20 Khz.) - see our 1627-1642 Series.
  • For push-pull output use, see our 125 Series.
  • Open style with minimum 12" long primary & secondary leads.
  • All sizes use butt stacked cores (using 29M6 steel) with an air gap, to reduce D.C. core saturation.
  • Primary impedance range from 2,500 to 10,000 Ohms.
  • Secondary impedance range from 4 to 32 Ohms.

Units shown: mm. Switch units to: inch

Part No. Audio Power Max. D.C. Bias Weight Dimensions Mounting Hole
(Watts) (ma) ( lbs.) A B C D E G
125ASE 3 25 0.5 71 34 43 60 - 5
125BSE 5 45 1.1 83 41 51 71 - 5
125CSE 8 60 1.3 94 47 59 80 - 5
125DSE 10 70 2 102 53 67 90 - 5
125ESE 15 80 3 114 60 75 102 - 5
125FSE 20 90 4.5 96 64 80 80 57 5 x 10
125GSE 25 100 6 105 73 88 88 64 5 x 10
 
Part No. Primary Winding Data
Inductance DC Resistance
(Minimum) (+/- 20%)
125ESE 9.58 H 90.6 Ohms

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