MIL-PRF-1/1037E
NOTES:
1.
Insulation material is required between heater and heater-cathode, and it shall be securely affixed.
2.
These dimensions shall be tested on 10 tubes per month when in continuous production. Failure of more than one tube to meet
tolerances for any dimensions shall cause that dimension to become, for all lots in process, part of conformance inspection,
part 2.
3.
Silver plated 30 MSI minimum. Note 2 shall apply.
4.
Plating not required over radiator and radiator support of copper, aluminum, or approved equivalent.
5.
This surface shall be used for measurement of anode shank temperature.
6.
Holes for tube extractor through top fin only.
7.
Inner edge of heater and outer edge of cathode RF connection shall be free from burrs and sharp edges.
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.
Distortion of fins permissible provided distance between adjacent fins at any point on circumference meets tolerances for
dimension K.
9.
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
10.
Diameters N, R, T and U shall apply throughout entire contact areas as defined by dimensions AW, AX, AY, and AZ,
respectively.
11.
Dimensions in electrode contact areas table are for socket design purposes and are not intended for inspection purposes.
12.
This surface shall not be used for clamping or locating.
13.
Minimum flat dimension.
FIGURE 1. Outline drawing of electron tube type 6897 - Continued.
9
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business