Tektronix DC 508A Contador
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Modelo:
DC 508A
Data:
1982
Categoria:
Grupo:
Descrição:
1.3 GHz Counter
Informação
The DC 508A 1.3 GHz Counter measures frequency from 10 Hz to
1.3 GHz. Frequencies from 10 Hz to 100 MHz are measured
using the direct input and from 100 MHz to 1.3 GHz using the
prescaler input. The Counter also totalizes events from 0 to
000.000,000. Nine 7-segment light emitting diodes (LED)
provide a visual numerical display which allows resolutions
of 1 kHz to 1 Hz (0.1 Hz when using the direct input). The
decimal point is automatically positioned and leading zeros
to the left of the most significant digit or decimal point
are blanked. Digit overflow is Indicated by a front panel LED.
The 50 Ω prescale input has a vswrof 2.2:1 or less and is
protected by an easily replaced front-panel fuse which opens
at approximately 9 V rms. A wide-band limiting Amplifier
with automatic gain control allows an input sensitivity of
20 mV rms over the frequency range of the prescaler input.
If the input signal falls below the minimum level allowable
for error-free prescale counting, the LED display is blanked
and an input error light is lit.
Direct input signals can be applied to either a front-panel
bnc connector or to the rear Interface connector.
The DC 508A operates in Tektronix TM 500-Series power
modules only. It will operate in any compartment of a
multiple-compartment power module.
Tipo de manual:
Serviço e Manual do Usuário
Páginas:
84
Tamanho:
23.89 Mbytes (25045687 Bytes)
Idioma:
english
Revisão:
revised
ID de manual:
070-3638-00
Data:
1982 07 01
Qualidade:
Scaned documento, todas legível.
Data de upload:
2017 12 30
MD5:
6ac36cd23e642774eb8fbeacf105fa8f
Downloads:
760
Informação
LIST OF ILLUSTRATIONS ... ii
SAFETY SUMMARY ... iii
Section 1 SPECIFICATION ... 2-1
The remaining portion of this Table of Contents lists
servicing instructions that expose personnel to hazardous
voltages. These instructions are for qualified service
personnel only.
Section 3 CIRCUIT DESCRIPTION ... 4-1
Performance Check ... 4-1
Adjustment Procedure ... 4-5
Section 5 MAINTENANCE AND
INTERFACING INFORMATION . . 5-1
Section 6 OPTIONS ... 6-1
Section 7 REPLACEABLE ELECTRICAL
PARTS ... 7-1
Section 8 DIAGRAM AND CIRCUIT BOARD
ILLUSTRATIONS ... 8-1
Section 9 REPLACEABLE MECHANICAL
PARTS ... 9-1
CHANGE INFORMATION