10/3/22, 1:33 AM
Audio Open Frame (149 Series) - Hammond Mfg.
Quality Products. Service Excellence.
Audio Open Frame 149 Series
PC Board Mount
Features
Pin type (0.25" length & 0.025" square), P.C. board mount.
Economical, open type, horizontal bracket construction.
Includes clinching lugs for extra mounting strength.
Frequency response 200 Hz. - 15 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 and 109 series.
Net weight: 0.6 oz. (148 Series) & 1.0 oz. (149 Series).
https://www.hammfg.com/electronics/transformers/audio/149
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10/3/22, 1:33 AM
Audio Open Frame (149 Series) - Hammond Mfg.
Max. Primary
D.C. Resistance
Nominal Impedance
D.C. current
(Ohms) +/- 15%
(Ohms)
(ma.)
(See Note 2)
Part No.
Applicaton
Primary
149C
Driver
149E
Driver
149F
Schematic
Output
Drawing
Secondary
(Milliwatts)
Figure
Secondary
(See Note 1)
Primary
160
20/80
56
24
7
200
2
300
30/120
42
41
10
200
2
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
Data subject to change without notice
© 2022. Hammond Manufacturing Ltd. All rights reserved.
https://www.hammfg.com/electronics/transformers/audio/149
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