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.
1
2
3
PRI
SEC
6
5
4
Part
No.
141B
141D
141F
141H
141M
141P
Nominal Impedance
Primary
200K
3000 C.T.
25K
600 C.T.
30K
1200 C.T.
Secondary
1000
1000 C.T.
50
600 C.T.
1200 C.T.
8
Max. Pri.
D.C. ma
0
1
2
2
2
2
D.C. Resistance
Primary
3775
120
1645
32
1100
50
Secondary
85
51
65
45
47
0.45
Output
Milliwatts
4
150
100
150
100
150
Audio
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.
Part
No.
140A
140B
140C
140H
140K
140M
140N
140P
140Q
Application
Voice Coil to Single Grid
Dyn. MIC. to Single Grid
MIC. to Single Grid
Bridging Line to P.P. Grids
MIC. to Single Grid
CRYS, MIC. to Base
Dyn. MIC to Base
Line to Base
Line to Line
Nominal Impedance
Primary
Secondary
4
60000
30
60000
50
60000
10000
40000 C.T.
150
60000
100K
1500
50
1500
150/600
600/2400
600 C.T.
600 C.T.
Overall Turns Ratio
Pri. to Sec.
1:122
1:45
1:34.5
1:2
1:2
8:1
1:5.5
1:2
1:1
Guelph, Ontario (519) 822-2960
St. Laurent, Quebec (514) 343-9010
©
Cheektowaga, NY (716) 630-7030
CANADA
USA
www.hammondmfg.com
Basingstoke, UK 01256 812812
Queenstown, Australia 61-8-8240-2244
EUROPE
74
AUSTRALIA
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).
Part
No.
Application
Nominal Impedance
Primary
Pri. D.C. Resistance +/- 15%
Output
D.C.
mW
Secondary
Primary
Secondary
(*1) ma
4000
0
0.4
245
15
1000
0
4500
30
25
500 C.T.
4
111
24
30
1000 C.T.
2.6
265
53
30
200 C.T.
1.5
720
9
30
2000 C.T.
1.5
720
89
30
600 C.T.
1
1890
25
30
3.2
10
10
0.33
150
3.2
9
15
0.33
150
3.2
6
27
0.33
150
8
6
27
0.9
150
50
6
28
7.3
150
150 C.T.
6
45
8.2
150
3.2
5
575
0.5
50
8
5
575
0.9
50
8
3.5
1240
0.9
50
200 C.T.
45
14
19
100
600
18
30
38
200
1500 C.T.
1
2400
52
50
1000
0.5
3600
33
10
600 C.T.
5
65
83
200
200 C.T.
20
45
9
135
200 C.T.
12
140
9
135
500 C.T.
12
148
17
135
600 C.T.
8
340
24
135
2600 C.T.
8
340
100
135
2000 C.T.
5
700
89
135
200 C.T.
4
850
10
135
1000 C.T.
3.5
1180
50
135
2000 C.T.
3.5
1180
89
135
3.2
20
2.4
0.3
700
8
20
2.4
0.7
700
3.2
14
4.4
0.3
700
8
14
4.4
0.7
700
3.2
8
11
0.3
700
8
8
11
0.7
700
3.2
6
26
0.3
700
8
6
26
0.7
700
3.2
4
56
0.3
700
8
4
56
0.7
700
8
3
97
0.7
700
8
2
220
0.7
700
Sch.
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
Series
No.
143...
144...
145...
146...
A
1.35
1.35
1.63
1.63
Dimensions (Inches)
B
C
D
0.69
0.69
1.06
0.69
0.69
1.06
0.88
0.81
1.38
0.88
0.81
1.38
Blue
Red
PRI
Schematic 1
Green
Black
SEC
Blue
Red
PRI
Schematic 2
Green
Black
Yellow
SEC
Blue
Red
Brown
PRI
Schematic 3
Green
Black
SEC
Blue
Red
Brown
PRI
Schematic 4
Green
Black
Yellow
SEC
143B
Input
3.2
143D
Input
200K
143H
Driver
1500
143J
Driver
3000
143L
Driver
10000
143N
Driver
10000
143R
Driver
25000
144B
Output
200 C.T.
144D
Output
300 C.T.
144F
Output
500 C.T.
144G
Output
500 C.T.
144H
Output
500 C.T.
144I
Output
600 C.T.
144P
Output
10000
144Q
Output
10000
144S
Output
20000
145A
Driver
100
145B
Driver-Output
600
145C
Input
50000
145D
Input
200K
145E
Input-Output
600 C.T.
145F
Driver
600 C.T.
145G
Driver
2000
145H
Driver
2000
145J
Driver
4000
145L
Driver
4000
145N
Driver
10000
145O
Driver
15000
145P
Driver
20000
145R
Driver
20000
146B
Output
48 C.T.
146C
Output
48 C.T.
146D
Output
100 C.T.
146E
Output
100 C.T.
146F
Output
250 C.T.
146G
Output
250 C.T.
146H
Output
500 C.T.
146I
Output
500 C.T.
146J
Output
1000 C.T.
146K
Output
1000 C.T.
146N
Output
2000 C.T.
146S
Output
4000 C.T.
Audio
NOTES:
*1) For output transformers this figure is maximum unbalance.
Basingstoke, UK 01256 812812
Queenstown, Australia 61-8-8240-2244
EUROPE
www.hammondmfg.com
AUSTRALIA
Guelph, Ontario (519) 822-2960
St. Laurent, Quebec (514) 343-9010
Cheektowaga, NY (716) 630-7030
CANADA
USA
75
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