Diagrams And Circuit Board Illustrations; Vertical Amplifier - Tektronix S-4 Instruction Manual

SECTION 8- TYPE S-4
DIAGRAMS AND CIRCUIT BOARD ILLUSTRATIONS
Symbols and Reference Designators
Electrical components shown on the diagramsare in the following units unless noted otherwise:
Capacitors = Values one or greater are in picofarads (pF).
Values less than one are in microfarads (uF).
Resistors= Ohms(2).
Graphic symbols and class designation letters are based on ANSI Standard Y32.2-1975.
Logic symbology is based on ANSI Y32.14-1973 in terms of positive logic. Logic symbols depict the logic
function performed and may differ from the manufacturer's data.
The overline on a signal name indicates that the signal performs its intended function when it goes to the low state.
Abbreviations are based on ANSI Y1.1-1972.
Other ANSI standards that are used in the preparation of diagrams by Tektronix, Inc. are:
Y14.15, 1966 Drafting Practices.
Y14.2, 1973 Line Conventions and Lettering.
Y10.5, 1968 Letter Symbols for Quantities Used in Electrical Science and
Electrical Engineering.
The following prefix letters are used as reference designators to identify components or assemblies on the diagrams.
A Assembly, separable or repairable H Heat dissipating device (heat sink, Ss Switch or contactor
(circuit board, etc) heatradiator, etc) T Transformer
AT Attenuator, fixed or variable HR Heater TC Thermocouple
B Motor HY Hybrid circuit TP Test point
BT Battery J Connector, stationary portion U Assembly, inseparable or non-repairable
Cc Capacitor, fixed or variable K Relay (integrated circuit, etc.)
cB Circuit breaker L Inductor, fixed or variable Vv Electron tube
CR Diode, signalor rectifier M Meter VR Voltage regulator (zener diode, etc.)
DL Delay line Pp Connector, movable portion Ww Wirestrap or cable
OS Indicating device (lamp) Q Transistor or silicon-controlled y Crystal
E Spark Gap, Ferrite bead rectifier Zz Phaseshifter
F Fuse R Resistor,fixed or variable
FL Filter RT Thermistor
Plug to E.C. Board
The following special symbols may appear on the diagrams:
Identifies Panel
Controls, Connectors and
Cam Switch
Closure Chart
TN ——Je 2
Modified Component
(Dot indicates
10
(Depicted in Greys, or with
' Grey Outline)--See Parts List
switch closure) 20 mn WIG ti | SOK
at Factory
i RI4 3 Refer to Waveform
an
DIAG Refer to Diagram Number
Internal
Screwdriver
3
a
Adjustment |
Functional Block Onn
Outline .
RN
Assembly Number AMPL
QgTEED Shielding
Heat Sink
Decoupled or Filtered
Voltage
Etched Circuit Board
Outlined in Black
VERTICAL AMPLIFIER <@><— and'Number
REV DEC 1983
-l2V3
Board Name