INCH-POUND
MIL-T-27/3B
23 September 2009
SUPERSEDING MIL-T-27/3A
6 December 1976
MILITARY SPECIFICATION SHEET
TRANSFORMER, AUDIO FREQUENCY
Inactive for new design after 25 August 1998
This specification is approved for use by all Depart- ments and Agencies of the Department of Defense.
The requirements for acquiring the transformer described herein shall consist of this specification sheet and MIL-PRF-27.
CIRCUIT DIARAM & MARKING READABLE WITH TRANSFORMER IN POSITION
MINIMUM CHASSIS CUTOUT
.173 DIA MIN.
4 HOLES REQ'D.
1.625
SQ.
1.188
+.000
2.375 - .125
1.188
01.188
DIA.
.219
10,000
.219 1.188
300 TO 10,000 Hz
POWER LEVEL: 15 DBM WORKING VOLTAGE: 175 V MAX
9 22,500
8 OHMS CT
4 STUDS OR 4 INSERTS (SEE NOTE 5)
.138-32UNC-2A x .375 LG. OR .138-32UNC-2B x .375 DEEP
1.188
Inches mm
.125 3.18
OHMS CT
.020 AMP DC THROUGH
TERMINAL
3
7 90,000
2 6 OHMS CT (4-9)
1 5 22,500
.138 3.51
.219 5.56
OHMS CT
4
MAX ALTITUDE: 50,000 FT. CIRCUIT DIAGRAM AND MARKING
NOTES:
1. Dimensions are in inches.
2. Metric equivalents are given for general information only.
3. Unless otherwise specified, tolerance on overall case dimensions is +.000 (0.00 mm)
-.063 (-1.60 mm).
4. Tolerance on mounting dimensions is +.016 inch (0.41 mm).
5. Inserts not recommended for new design.
6. Terminal arrangement optional within mounting area indicated.
FIGURE 1. Dimensions and configurations.
AMSC N/A FSC 5950
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