148B [HAMMOND]
P.C. BOARD MOUNT AUDIO TRANSFORMERS; P.C。板载音频变压器
| 型号： | 148B |
| 厂家： | 
Hammond Manufacturing Ltd. |
| 描述： | P.C. BOARD MOUNT AUDIO TRANSFORMERS |
| 文件： | 总2页 (文件大小：395K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
P.C. Board Mount (148-149 Series)
148 Series
P.C. BOARD MOUNT
AUDIO TRANSFORMERS
149 Series
• 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. - 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 & 109 series.
• Net weight: 0.6 oz. (148 Series) & 1.0 oz. (149 Series).
1
2
5
6
1
2
4
5
7
8
Nominal Impedance
D.C. Resistance +/- 15% (*2)
Part
No.
Pri D.C.
(*1) ma.
Output
Milliwatts Figure
Dwg.
Application
Primary Secondary
3
4
7
8
Primary
45
11.3
1760
1760
79
Secondary
300
200
25.4
6.2
148A
148B
148C
148D
148E
148F
148H
148K
148M
148Q
148R
148T
148V
148X
148Y
149C
149E
149F
149G
149H
149Q
149S
149T
149U
149V
Input
Input
Input
150/600
150
50000
200K
600/2400
400/1600
250/1000
1000
1.9
3.8
0
300
300
12
3
75
75
75
75
75
1
2
2
3
2
2
2
2
2
2
2
4
5
4
5
2
2
2
2
2
4
5
5
6
7
PRI
SEC
Figure 5
PRI
SEC
Input
0
Figure 1
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Output
Output
Output
Output
Driver
Driver
Driver
Driver
Driver
Output
Output
Output
Output
Hybrid
500
1500
3000
4000
125/500
125/500
250/1000
500/2000
500/2000
500/2000
250/1000
3.2
18
11.6
7.5
6.5
5.3
4.1
2.4
2.1
1.9
0.8
0.7
56
42
33
29
22
7
60
220
480
540
850
1700
2230
41
58
1
2
5
6
107
230
230
238
123
0.34
14
5
8
1
4
6000
10000
20000
500 C.T.
600 C.T.
4000 C.T.
75
50
3
4
7
8
300
300
300
300
200
200
200
200
200
1000
1000
1000
1000
1000
150 C.T.
3.2
45
PRI
SEC
PRI
SEC
380
410
24
0.34
52
6.5
Figure 6
Figure 2
5000 C.T. 500 C.T.
160
300
450
600
1000
200 C.T.
600 C.T.
600 C.T.
150/600
20/80
30/120
40/160
150/600
60/240
3.2
150 C.T.
600 C.T.
8
41
9.7
1
4
5
8
5
6
52
19
1
92
58
3
4
155
19
24
0.4
PRI
SEC
Figure 3
7
8
4
4
4
4
53
17
53
70
1
2
4
53
95
5
8
PRI
SEC
600 C.T. 300/1200
53
63
Figure 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
PRI
SEC
secondary windings the figure shown is with the windings connected in series).
Figure 4
EUROPE
CANADA
Basingstoke, UK 01256 812812
Guelph, Ontario (519) 822-2960
www.hammondmfg.com
St. Laurent, Quebec (514) 343-9010
AUSTRALIA
Queenstown, Australia 61-8-8240-2244
USA
Cheektowaga, NY (716) 630-7030
©
P.C. Board & Chassis Mount (140-141 Series)
LOW PROFILE - P.C. BOARD MOUNT
AUDIO TRANSFORMERS
• Pin type (0.25" length & 0.035" diameter), P.C. board mount
• Low profile, open type construction
• Frequency response 200 Hz. - 15 Khz. (+/- 2 db, ref. @ 1 Khz.)
• Net weight 0.6 oz.
Nominal Impedance
D.C. Resistance
Primary Secondary
Part
No.
Max. Pri.
D.C. ma
Output
Milliwatts
1
2
3
6
5
4
Primary
Secondary
141B
141D
141F
141H
141M
141P
200K
3000 C.T.
25K
1000
1000 C.T.
50
0
1
2
2
2
2
3775
120
1645
32
85
51
65
4
150
100
150
100
150
600 C.T.
30K
1200 C.T.
600 C.T.
1200 C.T.
8
45
1100
50
47
0.45
PRI
SEC
CHASSIS MOUNT - SHIELDED
AUDIO TRANSFORMERS
• Insulated leads 5" long minimum
• Stamped steel case (Diameter of 1.25" and height of 1") for excellent
shielding - low hum pick-up.
• Frequency response 70 Hz. - 11 Khz. (+/- 1 db, ref. @ 1 Khz.)
• Case hole mounting centers are 1.6"
• Net weight 2 oz.
Nominal Impedance
Overall Turns Ratio
Part
No.
Application
Primary
4
Secondary
60000
Pri. to Sec.
1:122
1:45
1:34.5
1:2
140A Voice Coil to Single Grid
140B Dyn. MIC. to Single Grid
140C MIC. to Single Grid
140H Bridging Line to P.P. Grids
140K MIC. to Single Grid
140M CRYS, MIC. to Base
140N Dyn. MIC to Base
140P Line to Base
30
60000
50
60000
10000
150
40000 C.T.
60000
1:2
8:1
1:5.5
1:2
1:1
100K
50
1500
1500
150/600
600 C.T.
600/2400
600 C.T.
140Q Line to Line
CANADA
EUROPE
Guelph, Ontario (519) 822-2960
Basingstoke, UK 01256 812812
www.hammondmfg.com
74
St. Laurent, Quebec (514) 343-9010
USA
AUSTRALIA
Queenstown, Australia 61-8-8240-2244
Cheektowaga, NY (716) 630-7030
©
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