The Audio Type Transformers 124 series. "Classic" audio tube driver transformers.

 

124 Picture

 

Key Features:

  • Designed for general purpose or replacement use in single ended or phase inverter tube driver circuits.

  • Open style with minimum 5" long primary leads.

  • Minimum frequency response 50 Hz. - 13 Khz (+/- 1db max. ref. 1 Khz.) at full rated power.

  • Our part number EID-124B is the same as our EID-124A except for 49% Nickel laminations for greater fidelity.

  • Our part number EID-124C (below) is the COIL ONLY (for those experimenters who want to use their own "iron").

  • If you are looking to replace Radiola III-A audio transformers, check out our universal replacement unit.

 

P#

Audio
Watts

Primary Impedance
(Ohms)

Secondary Impedance
(Ohms)

Secondary
Winding

Laminations

Dimensions (Inches)

A

B

C

D

G
Mtg Hole

EID-124A

5

10K

90K

C.T.

Grain Oriented
Steel

2.37

1.10

1.36

2.00

0.187

EID-124B

5

10K

90K

C.T.

49% Nickel

2.37

1.10

1.36

2.00

0.187

EID-124C

5

10K

90K

C.T.

None

-

-

-

-

-

EID-124D

5

7K c.t.

15.8K c.t.

C.T.

Grain Oriented
Steel

2.80

1.30

1.68

2.38

0.187

EID-124E

5

15K c.t.

33.8K/135K

Dual

Grain Oriented
Steel

2.87

1.50

2.35

2.38

0.187


 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Audio Watts = 5 watts

 

Mechanical Data:

124 Dwg.

 

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