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Universal Single-Ended Tube Output

125ESE Photo 

 

Key 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).
  • 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.

 

Part Number

Thumbnail
Photo

Audio Power
(Watts)

Max. D.C. Bias
(ma)

Weight
( lbs.)

125ASE
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3 25 0.5
125BSE
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5 45 1.1
125CSE
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8 60 1.3
125DSE
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10 70 2
125ESE
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15 80 3
125FSE
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20 90 4.5
125GSE
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25 100 6
 
Test Data (125ESE)
 

Part Number

Primary Winding Data

Inductance
(Minimum)

DC Resistance
(+/- 20%)

125ESE 9.58 H 90.6 Ohms

 

Mechanical Data (125ASE - 125ESE)

 

125SE Dwg

 

Part Number

Dimensions
(Inches)

A

B

C

D

G Mtg. Hole

125ASE 2.81 1.35 1.69 2.38 0.187
125BSE 3.25 1.63 2.00 2.81 0.187
125CSE 3.69 1.86 2.31 3.13 0.187
125DSE 4.00 2.10 2.63 3.56 0.187
125ESE 4.50 2.36 2.94 4.00 0.187

 

Mechanical Data (125FSE & 125GSE)

 

 

 

Part Number

Dimensions
(Inches)

A

B

C

D

E

G Mtg. Hole

125FSE 3.76 2.52 3.15 3.13
2.25
0.2 x 0.38
125GSE 4.15 2.88 3.46 3.45
2.5
0.2 x 0.38

 

Schematic & Hook Up Data

 

125SE Schematic

 

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