MIL-PRF-1/1633B
NOTES: - Continued.
8. This fin shall withstand a 6-inch drop test without loosening and without distortion as judged by ability to
maintain dimension K. Note 2 shall apply.
9. Distortion of fins permissible provided distance between adjacent fins at any point on circumference meets
tolerances for dimension K.
10. Eccentricity of contact surfaces shall be gauged from center line of reference and shall be as follows: Note 2
shall apply.
TIR maximum
Reference
Contact surface
Anode
.020
Cathode
Grid
.020
Cathode
Heater
.012
Cathode
11. Diameters N, R, T, and U shall apply throughout entire contact areas as defined by dimensions AA, AB, AC,
and AD, respectively.
12. Dimensions in electrode contact areas table are for socket design purposes and are not intended for inspection
purposes.
13. This surface shall not be used for clamping or locating.
FIGURE 1. Outline drawing of electron tube type 7211 - Continued.
Custodians:
Preparing activity:
Army - CR
DLA - CC
Navy - EC
Air Force - 11
DLA - CC
(Project 5960-3699)
Review activities:
Army - AR, CR4
Navy - AS, CG, MC, OS
Air Force - 19, 99
9
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