Chassis Mount (143-146 Series)
CHASSIS MOUNT
AUDIO TRANSFORMERS
• Economical, open, two hole horizontal bracket mount.
• Insulated, color coded flexible leads, 4" long minimum (143, 144 & 145 Series)
or 3" long minimum (146 Series).
• For a similar, P.C. board mount version, refer to our 148 & 149 Series.
• Frequency response 150 Hz. to 15 Khz. (+/- 1 db, reference 1000 Hz.)
• When operating at impedances below nominal, power capability and the
frequency spectrum are proportionately lower, conversely, at higher impedances
power capability and frequency spectrum will be proportionately higher.
• Net weight: 0.5 oz. (143, 144 & 146 Series) & 1.4 oz. (145 Series).
Dimensions (Inches)
Series
No.
A
B
C
D
143...
144...
145...
146...
1.35
1.35
1.63
1.63
0.69
0.69
0.88
0.88
0.69
0.69
0.81
0.81
1.06
1.06
1.38
1.38
Pri.
D.C.
(*1) ma
0
Nominal Impedance
Primary Secondary
D.C. Resistance +/- 15%
Part
No.
Output
mW
Application
Sch.
Primary
Secondary
143B
143D
143H
143J
143L
143N
143R
144B
144D
144F
144G
144H
144I
144P
144Q
144S
145A
145B Driver-Output
145C
145D
Input
Input
3.2
200K
1500
3000
4000
1000
500 C.T.
1000 C.T.
200 C.T.
2000 C.T.
600 C.T.
3.2
3.2
3.2
8
50
150 C.T.
3.2
0.4
4500
111
265
720
720
1890
10
15
27
27
28
245
30
24
53
9
15
25
30
30
30
1
1
2
2
2
2
2
3
3
3
3
3
4
1
1
1
2
1
2
1
4
4
2
2
2
2
2
2
2
2
3
3
3
3
3
3
3
3
3
3
3
3
0
4
Driver
Driver
Driver
Driver
Driver
Output
Output
Output
Output
Output
Output
Output
Output
Output
Driver
2.6
1.5
1.5
1
10
9
6
6
6
6
10000
10000
25000
200 C.T.
300 C.T.
500 C.T.
500 C.T.
500 C.T.
600 C.T.
10000
10000
20000
100
Blue
Green
89
25
30
30
0.33
0.33
0.33
0.9
7.3
8.2
0.5
0.9
0.9
19
150
150
150
150
150
150
50
50
50
100
200
50
Red
Black
PRI
SEC
Schematic 1
45
5
5
575
575
1240
14
8
8
Blue
Green
Black
3.5
45
18
1
0.5
5
20
12
12
8
8
5
4
3.5
3.5
20
20
14
14
8
200 C.T.
600
600
30
38
Input
Input
50000
200K
1500 C.T.
1000
600 C.T.
200 C.T.
200 C.T.
500 C.T.
600 C.T.
2600 C.T.
2000 C.T.
200 C.T.
1000 C.T.
2000 C.T.
3.2
2400
3600
65
52
33
83
Red
Yellow
10
145E Input-Output 600 C.T.
200
135
135
135
135
135
135
135
135
135
700
700
700
700
700
700
700
700
700
700
700
700
PRI
SEC
Schematic 2
145F
145G
145H
145J
145L
145N
145O
145P
145R
146B
146C
146D
146E
146F
146G
146H
146I
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Driver
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
Output
600 C.T.
2000
2000
4000
4000
10000
15000
20000
20000
48 C.T.
48 C.T.
100 C.T.
100 C.T.
250 C.T.
250 C.T.
500 C.T.
500 C.T.
1000 C.T.
1000 C.T.
2000 C.T.
4000 C.T.
45
9
140
148
340
340
700
850
1180
1180
2.4
2.4
4.4
4.4
11
11
26
26
56
56
97
220
9
17
24
100
89
10
50
89
0.3
0.7
0.3
0.7
0.3
0.7
0.3
0.7
0.3
0.7
0.7
0.7
Blue
Red
Green
Black
Brown
PRI
SEC
8
3.2
8
3.2
8
3.2
8
3.2
Schematic 3
Blue
Red
Green
Black
8
6
6
4
4
3
2
146J
146K
146N
146S
Brown
Yellow
8
8
8
PRI
SEC
Schematic 4
NOTES:
*1) For output transformers this figure is maximum unbalance.
EUROPE
CANADA
Basingstoke, UK 01256 812812
Guelph, Ontario (519) 822-2960
www.hammondmfg.com
75
St. Laurent, Quebec (514) 343-9010
AUSTRALIA
Queenstown, Australia 61-8-8240-2244
USA
Cheektowaga, NY (716) 630-7030
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