Model
8903B
SCHEMATIC SYMBOLOGY AND SCHEMATIC DIAGRAM
NOTES
Service
Tahk
8-6.
Schematic
Diagram
N0ti.s
(3
oj'
I
I)
A
4
,,
JA
,,
k
,,
322
Indicates multiple paths represented by only one line. Letters or names identify indi-
vidual paths. Numbers indicate number of paths represented by the line.
Coaxial or shielded cable.
Ferrite bead. (Increases the self-inductance
of
the conductor passing through the
bead
.)
Relay. Contact moves in direction
of
arrow when energized.
Indicates a pushbutton switch with a momentary
(ON)
position.
Feedthrough capacitor. (Acts as a feedthrough terminal when mounted on a chassis
or
a
frame.)
Indicates a
PIN
diode.
Indicates a current regulation diode.
Indicates a voltage regulation diode.
Indicates a capacitive (varactor) diode.
Indicates a Schottky (hot-carrier) diode.
Light-emitting diode.
Multiple transistors in a single package-physical location
of
the pins is shown in
package outline on schematic.
Identification of logic families as shown (in this case, ECL).
8-23
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