The Audio Type Transformers 148 & 149 series. P.C. Board mount open frame audio transformer. and Audio Type Transformers 141 Series  P.C. Board mount low profile audio transformer.

 

148, 149 Picture

148 and 149 Series

 

Key Features:

  • Pin type (0.25" length & 0.025" square), P.C. board mount.

  • Economical, open type, horizontal bracket construction. 149 Series includes clinching lugs for extra mounting strength.

  • Frequency response 200 Hz. - 50 Khz. (+/- 1 db, ref. @ 1 Khz.).

  • Total distortion approximately 2% for drivers and 1% for outputs at 200 Hz., decreasing at higher frequencies.

  • Insertion loss less than 1/2 db.

  • Bifilar wound for balanced capacitive and resistance characteristics, on pin bobbins for standard 0.2" grid pin spacing.

  • Insulation test 250V rms.

  • For rugged epoxy cast type units refer to our 102, 104, 106, or 107, 108 & 109 series.

  • Net weight: 0.6 oz. (148 Series) & 1.0 oz. (149 Series).

P#

Applicaton

Nominal Impedance

Pri. D.C. (*1) ma

D.C. Resistance +/- 15%

Output Milliwatts

Dwg. Figure

Primary

Secondary

Primary

Secondary

EID-148A

Input

150/600

600/2400

1.9

45

300

300

1

EID-148B

Input

150

400/1600

3.8

11.3

200

300

2

EID-148C

Input

50000

250/1000

0

1760

25.4

12

2

EID-148D

Input

200K

1000

0

1760

6.2

3

3

EID-148E

Driver

500

125/500

18

79

60

75

2

EID-148F

Driver

1500

125/500

11.6

220

58

75

2

EID-148H

Driver

3000

250/1000

7.5

480

107

75

2

EID-148K

Driver

4000

500/2000

6.5

540

230

75

2

EID-148M

Driver

6000

500/2000

5.3

850

230

75

2

EID-148Q

Driver

10000

500/2000

4.1

1700

238

75

2

EID-148R

Driver

20000

250/1000

2.4

2230

123

50

2

EID-148T

Output

500 ct

3.2

2.1

41

0.34

300

4

EID-148V

Output

600 ct

150 ct

1.9

45

14

300

5

EID-148X

Output

4000 ct

3.2

0.8

380

0.34

300

4

EID-148Y

Output

5000 ct

500 ct

0.7

410

52

300

5

EID-149C

Driver

160

20/80

56

24

6.5

200

2

EID-149E

Driver

300

30/120

42

41

9.7

200

2

EID-149F

Driver

450

40/160

33

52

19

200

2

EID-149G

Driver

600

150/600

29

92

58

200

2

EID-149H

Driver

1000

60/240

22

155

24

200

2

EID-149Q

Output

200 ct

3.2

7

19

0.4

1000

4

EID-149S

Output

600 ct

150 ct

4

53

17

1000

5

EID-149T

Output

600 ct

600 ct

4

53

70

1000

5

EID-149U

Output

150/600

8

4

53

95

1000

6

EID-149V

Hybrid

600 ct

300/1200

4

53

63

1000

7


Mechanical & Schematic Data:

148 Line Art

 

 

 

 

148 Series

149 Line Art

 

149 Series


148, 149 Schematics 148, 149 Schematics

 

 

Audio Type Transformers 141 Series P.C. Board mount low profile audio transformer.

 


141 Picture

 

141 Series

 

Key Features:

  • Pin type (0.25" length & 0.035" diameter), P.C. board mount

  • Low profile, open type construction

  • Frequency response 200 Hz. - 50 Khz. (+/- 2 db, ref. @ 1 Khz.)

  • Net weight 0.6 oz.

P#

Nominal Impedance

Max. Pri.
D.C. ma

D.C. Resistance

Output Milliwatts

Primary

Secondary

Primary

Secondary

EID-141B

200 K

1000

0

3775

85

4

EID-141D

3000 ct

1000 ct

1

120

51

150

EID-141F

25 K

50

2

1645

65

100

EID-141H

600 ct

600 ct

2

32

45

150

EID-141M

30 K

1200 ct

2

1100

47

100

EID-141P

1200 ct

8

2

50

0.45

150

 

Note: The 141M primary is 30K.


Mechanical & Schematic Data:

141 Line Art

141 Schematic

 

  •