TB 9-6625-1960-40
EQUIPMENT REQUIREMENTS
4. Equipment Required. Table 2 identifies the specific equipment to be used in this
calibration procedure. This equipment is issued with Secondary Reference Calibration
Standards Set NSN 4931-00-621-7878. Alternate items may be used by the calibrating
activity. The items selected must be verified to perform satisfactorily prior to use and must
bear evidence of current calibration. The equipment must meet or exceed the minimum use
specifications listed in table 2. The accuracies listed in table 2 provide a four-to-one ratio
between the standard and TI. Where the four-to-one ratio cannot be met, the actual
accuracy of the equipment selected is shown in parenthesis.
5. Accessories Required. The accessories listed in table 3 are issued as indicated in
paragraph 4 above and are used in this calibration procedure. When necessary, these items
may be substituted by equivalent items, unless specifically prohibited.
Table 2. Minimum Specifications of Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
Range: -250 to +250 mV dc
Agilent, Model 3458A (3458A)
Accuracy: 0.075%
Range: 25ps or less
Hewlett Packard, Model 54121T
Must be compatible with TI
Tektronix, Type 7613
MAINFRAME
Common name
Description (part number)
ADAPTER
Signal pick off, Tektronix, Type 067-0655-00
ADAPTER1
IC dip clip (3916A) (PC-14)
EXTENDER
Tektronix, Type 067-0616-00
STEPPER NO. 1
Stepper pushbutton (locally fabricated see fig. 3)
STEPPER NO. 2
Tektronix, Type 260-1368-01 micro switch
1Item in repair set.
CALIBRATION PROCESS FOR CALIBRATION FIXTURE
TEKTRONIX TYPE 067-0587-01
6. Preliminary Instructions
a. The instructions outlined in paragraphs 6 and 7 are preparatory to the calibration
process. Personnel should become familiar with the entire bulletin before beginning the
calibration.
b. Items of equipment used in this procedure are referenced within the text by common
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.