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|  MIL-R-23016(Wep)
Tuning Dials:
3.1.6.2
The divisions and lettering on tuning dials shall be
suitably etched or printed with characters large enough
to read under normal conditions or eyesight and lighting
at a distance of 2 feet anywhere within a solid angle of
60 (any point 2 feet from the dial and within an angle
of 30 from a line through the center of the dial and per-
pendicular to the panel on which the dial is mounted).
Weighted tuning knobs shall be counterbalanced. The
mechanism shall be such that the tuning knob will stay
fixed in any position and for all angular positions of the
dial and dial mechanism. All tuning controls shall be
insulated from the high-voltage circuits.
Non-turning Devices:
3.1.6.3
All controls shall be equipped with a device to prevent
their turning on the panel to which they are mounted.
Console Control Panels:
3.1.6.4
Console control panels shall meet the requirements of Spe-
cification MIL-C-6781, except as stated herein.
Outline Dimension and Control Configuration:
3.1.6.4.1
The outline and mounting dimensions and location of the
panel controls shall conform to the requirements of
Figure 4. The frequency control knobs shall increase
frequency with clockwise rotation of each control.
Control Panel Wiring:
3.1.6.4.2
The pin assignment for the control panel connector plug
shall conform to the requirements of Figure 5.
Corrosion Resistance:
3.1.7
Materials shall be of corrosion-resistant types, or shall
be suitably processed to resist corrosion.
Gold, nickel, chromium, rhodium, corrosion-resistant steel
3.1.7.1
(12 percent or more chromium), tin, lead-tin alloys or
sufficiently thick platings of these metals are satisfactory
without additional protection or treatment other than
buffing or cleaning. Aluminum, magnesium, brass, iron,
steel; cadmium, and zinc, in general, require additional
protection in accordance with 3.1.11.
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