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Model
8901B
Service
lbble 8A-6. Schematic Diagram Notes
(3
of
1
I)
Indicates multiple paths represented by only one line. Letters or names identify indi-
vidual paths. Numbers indicate number of paths represented by the line.
' r
Coaxial or shielded cable.
U
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.
Y
-
T
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.
4 : : : :
$3-
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).
8A-12
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