148M Hammond Manufacturing, 148M Datasheet - Page 2
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148M
Manufacturer Part Number
148M
Description
AUDIO TRANSFORMER
Manufacturer
Hammond Manufacturing
Series
148r
Datasheet
1.148Y.pdf
(2 pages)
Specifications of 148M
Transformer Type
Economical Open Type
Current
5.3mA
Impedance
6K Primary, 500/2K Secondary
Insertion Loss
±1dB
Mounting Type
Chassis Mount
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
P.C. Board & Chassis Mount (140-141 Series)
©
St. Laurent, Quebec (514) 343-9010
1
2
3
Cheektowaga, NY (716) 630-7030
Guelph, Ontario (519) 822-2960
PRI
CANADA
USA
SEC
140M
140A
140B
140C
140H
140K
140N
140Q
140P
Part
No.
6
5
4
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
Application
•
•
•
•
www.hammondmfg.com
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.
141B
141D
141H
141M
141F
141P
Part
No.
•
•
•
•
•
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.
3000 C.T.
1200 C.T.
Primary
600 C.T.
Nominal Impedance
Primary
600 C.T.
150/600
200K
25K
30K
Nominal Impedance
10000
100K
150
LOW PROFILE - P.C. BOARD MOUNT
30
50
50
74
4
CHASSIS MOUNT - SHIELDED
AUDIO TRANSFORMERS
Secondary
Secondary
40000 C.T.
1000 C.T.
1200 C.T.
600/2400
600 C.T.
600 C.T.
AUDIO TRANSFORMERS
60000
60000
60000
60000
1000
1500
1500
50
8
Max. Pri.
D.C. ma
Overall Turns Ratio
0
1
2
2
2
2
Pri. to Sec.
Queenstown, Australia 61-8-8240-2244
1:34.5
1:122
1:5.5
1:45
1:2
1:2
8:1
1:2
1:1
Basingstoke, UK 01256 812812
Primary
3775
1645
1100
120
32
50
D.C. Resistance
AUSTRALIA
EUROPE
Secondary
0.45
85
51
65
45
47
Milliwatts
Output
150
100
150
100
150
4