TB 9-6625-1314-35
Table 4. Minimum Specifications of Equipment Required
Minimum use
Manufacturer and model (part number)
Item
Common name
specifications
Level A
AN/GSM-256
AN/GSM-259
AN/TSM-55
A1
Holt, Model 250
Not required
Not required
Not required
Range: 199.9 A to 2 A at
(7912648)
50 Hz to 1 kHz
Accuracy:
1
A2
AC VOLTAGE CALIBRATOR
Range: 0 to 1000 V ac
Hewlett-Packard,
John Fluke, Model Same as Level A
Same as
(PRECISION STANDARD AC
Model 745/C90
760 (760A)
AN/GSM-256
0.025%
Accuracy:
MIS-10342 Type 1
(50 Hz to 50 kHz)
with C/90746
(C90746)
A3
Range: 99.78 mV to 35 V
Dana, Model
Hewlett-Packard,
Same as
John Fluke, Model
Accuracy:
5000S2351
Model 3490A
AN/GSM-256
883AB (TS-
12
(5000S2351)
(3490A OPTION
283414)
060)
A4
AC POWER SUPPLY
Range: 50 Hz to 10 kHz,
N.H. Research,
Elgar, Model 121
Not required
Not required
0.2 mA to 2 A ac
Model SF613
(121)
(MIS-10222)
A5
Range: 105 to 125 V ac
General Radio,
Same as Level A
Same as Level A
General Radio,
(VARIABLE POWER
Model W10M
Model W10M T3A
1%
Accuracy:
T3AS3 (7910809)
A6
DC CURRENT SHUNT
Guildline, Model
Not required
Not required
Not required
Range: 199.9 A to 2 A
9711 (7912323)
Accuracy:
2
A7
DC VOLTAGE STANDARD
Range: 99.8 mV to 1000 V dc
John Fluke, Model John Fluke 760
Same as Level A
Same as AN/GSM-
332/A (332B/AF)
(760A)
256
0.0125%
Accuracy:
A8
Biddle-Gray
Biddle-Gray, Model Same as
General Radio,
Range: 10.0Ω to 2 MΩ
Model 60114-84
71-631 General
AN/GSM-256
Model 1433Y and
Accuracy:
3
STANDARD)
(7910309) and
Radio, Model
Model 1434N
model CR10M
1433Y
A9
DECADE RESISTOR
Range: 0 to 2 A
Winslow, Model
Same as Level A
Same as
Clarostat, Model
336 (7907234)
Level A
240C (ZM/58U)
A10
DC POWER SUPPLY
Range: 199.9 A to 2A
NJE, Model
Not required
Not required
Not required
CS36CR30
(7907346-2)
2