MIL-PRF-1/770F
NOTES:
1. This specification sheet uses accept on zero defect sampling in accordance with MIL-PRF-1, table III.
2.
Applies to location of center line of guard pipe only.
3.
The center of the jack holes shall be within a radius of .100 inches (2.54 mm) of the location specified, but shall be
spaced .797 inch (20.24 mm) ± .015 inch (0.38 mm) with respect to each other.
4.
This annular area shall be flat within .015 inch (0.38 mm) a thickness gauge .125 inch (3.18 mm) wide shall not enter
more than .250 inch (6.35 mm).
5.
The periphery of the anode shall lie within a 2.160 inch (54.86 mm) diameter circle located as specified for non-tunable
side of anode.
6.
Maximum width specified applies to area defined by broken line and circumference of radiator.
7.
Paint with heat-resistant, non-corrosive paint. The following shall be free from paint; top surface of mounting plate, parts
above mounting plate, screw threads on guard pipe, and all surfaces inside guard pipe, tuning gear, stop and worm shaft
assembly.
8.
All solder joints on mounting plate and guard pipe shall be soldered to provide a hermetic seal.
9.
Tube shall be supported by mounting plate or guard pipe.
10.
No sharp edges on outside diameter at end of inner conductor.
11.
Center line of maximum diameter shall be concentric with center line of guard pipe to within .040 inch (1.02 mm).
12.
Applies to inner conductor insert only. Center line of inner conductor insert shall be concentric with center line of guard
pipe to within .025 inch (0.64 mm).
13.
Applies to straight portion of inner conductor wall.
14.
Corona ring shall fall within a 3.662 inch (93.01 mm) diameter circle concentric to center of bolt hole circle, applicable to
old type insulator only.
15.
Tuning mechanism will provide full range of tuning with five maximum complete revolutions of the large tuning gear for
tube type 5586, and four minimum revolutions of the large tuning gear for tube type 5657.
16. Spline for adjusting tuning mechanism is as follows: 12 teeth, 48 pitch, .250 inch (6.35 mm) pitch diameter.
17. This dimension shows relation between a plane passing through lateral center of anode and a plane through center of
guard pipe.
18. Protective guard for shipping purposes.
19. Hex locking head, banana pin jack .594 inch (15.09 mm) long, and .169 inch (4.29 mm) ± .005 inch (0.13 mm) diameter.
20. Common cathode connection marked with letter "C" at either top or side of base tube insulator.
21. Reference plane "A" is defined as a plane passing along the face of the mounting plate.
22.
Reference plane "B" is defined as a plane perpendicular to plane "A" and passing through the center of the holes as
shown.
23.
Reference plane "C" is defined as a plane mutually perpendicular to planes "A" and "B" and passing through the center of
the hole as shown.
24.
Leads shall be flexible and slack.
25.
Pyrex glass or approved equal.
26.
Applicable to old type insulator only.
27.
Old glass and metal type protector, shown only for information purposes.
28.
One piece filament pipe protector.
29.
Clearance to adapter guard pipe shall be sufficient to allow use of SS White No. 2666X or equal, end fitting .406 inch
(10.31 mm) diameter.
FIGURE 1. Outline drawing of electron tube types 5586 and 5657 - Continued.
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