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Key Features:

Part Number

Applicaton

Nominal Impedance
(Ohms)

Max. Primary
D.C. current
(ma.)
(See Note 1)

D.C. Resistance
(Ohms) +/- 15%
(See Note 2)

Output
(Milliwatts)

Schematic
Drawing
Figure

Primary

Secondary

Primary

Secondary

148A
Input
150/600
600/2400
1.9
45
300
300
1
148B
Input
150
400/1600
3.8
11.3
200
300
2
148C
Input
50000
250/1000
0
1760
25.4
12
2
148D
Input
200K
1000
0
1760
6.2
3
3
148E
Driver
500
125/500
18
79
60
75
2
148F
Driver
1500
125/500
11.6
220
58
75
2
148H
Driver
3000
250/1000
7.5
480
107
75
2
148K
Driver
4000
500/2000
6.5
540
230
75
2
148M
Driver
6000
500/2000
5.3
850
230
75
2
148Q
Driver
10000
500/2000
4.1
1700
238
75
2
148R
Driver
20000
250/1000
2.4
2230
123
50
2
148T
Output
500 ct
3.2
2.1
41
0.34
300
4
148V
Output
600 ct
150 ct
1.9
45
14
300
5
148X
Output
4000 ct
3.2
0.8
380
0.34
300
4
148Y
Output
5000 ct
500 ct
0.7
410
52
300
5
149C
Driver
160
20/80
56
24
6.5
200
2
149E
Driver
300
30/120
42
41
9.7
200
2
149F
Driver
450
40/160
33
52
19
200
2
149G
Driver
600
150/600
29
92
58
200
2
149H
Driver
1000
60/240
22
155
24
200
2
149Q
Output
200 ct
3.2
7
19
0.4
1000
4
149S
Output
600 ct
150 ct
4
53
17
1000
5
149T
Output
600 ct
600 ct
4
53
70
1000
5
149U
Output
150/600
8
4
53
95
1000
6
149V
Hybrid
600 ct
300/1200
4
53
63
1000
7

Notes:
1) For output transformers the current figure is for maximum unbalanced current.
2) D.C. resistance shown is for the total primary or secondary windings (ie...if unit contains multiple primary or secondary windings the figure shown is with the windings connected in series).


Mechanical & Schematic Data:

148 Line Art

148 Series

149 Line Art

149 Series


148, 149 Schematics 148, 149 Schematics




141 Picture
141 Series
P.C. BOARD MOUNT
(LOW PROFILE)
AUDIO

Key Features:

Part Number

Nominal Impedance
(Ohms)

Max. Pri.
D.C. current
(ma.)

D.C. Resistance
(Ohms)

Output
(Milliwatts)

Primary

Secondary

Primary

Secondary

141B
200 K
1000
0
3775
85
4
141D
3000 ct
1000 ct
1
120
51
150
141F
25 K
50
2
1645
65
100
141H
600 ct
600 ct
2
32
45
150
141M
30 K
1200 ct
2
1100
47
100
141P
1200 ct
8
2
50
0.45
150

Note: Part number 141M is incorrectly listed as having a 300K primary impedance in our
latest catalogs, the primary is actually 30K as shown above.


Mechanical & Schematic Data:

141 Line Art

141 Schematic



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