Equipment information
Wavetek 148A Generator
Manufacturer:
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Model:
148A
Date:
1981
Category:
Group:
Description:
Information
THE MODEL 148A
Wavetek Model 148A, 20 MHz AM/FM/PM Generator is a precision
source of sine, triangle, square, ramp and pulse waveforms
plus dc voltage. The waveforms may be controlled in symmetry
as well as amplitude and dc offset. A built-in modulation
Generator can modulate frequency, phase and amplitude or
modulation may be by an external source.
The Generator may be run in continuous mode or triggered for
a single pulse or gated for a burst of pulses. Triggering
and gating may be by the model 148 built-in modulation
Generator or by an external source. The triggered and gated
waveform start/stop point is selectable from -90° through
+90°, Start/stop control plus dc offset control gives
haverwave capability.
The main output of waveforms may be attenuated and offset. A
TTL sync pulse is available at main Generator frequencies,
and the modulation Generator waveforms are available at
fixed amplitudes.
Frequency of both the main Generator and the modulation
Generator can be manually controlled at the front panel or
electrically controlled by external voltages.
An external sync input (Option 001) located on the rear
panel allows the instrument to be synchronized to an
external signal source.
Manual Type:
User Manual
Pages:
21
Size:
562.62 Kbytes (576123 Bytes)
Language:
english
Revision:
6/81
Manual-ID:
Date:
Quality:
Scanned document, all readable.
Upload date:
2008 02 22
MD5:
2798f7f9a33b7e5471c80523522ada5e
Downloads:
1455
Manual Type:
Service and User Manual
Pages:
68
Size:
3.64 Mbytes (3813936 Bytes)
Language:
english
Revision:
Manual-ID:
Date:
1982 08 01
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2018 08 12
MD5:
44c7783805b52d1992f890c1891b4a44
Downloads:
714
Information
This is the Maintenance Manual for the ML422B/C Selective
Level Meter. It covers the following information:
SECTION 2, MECHANICAL CONFIGURATION AND BLOCK DIAGRAM:
Describes how the various printed circuit boards (PC boards)
are laid out, their electrical operation, and how to change
the AC line voltage.
SECTION 3, CALIBRATION AND ADJUSTMENT:
Describes how to perform calibration and adjustment for the
local Oscillator source and level calibration source.
SECTION 4, TROUBLESHOOTING AND CIRCUITY;
Describes how to troubleshoot and repair the equipment.
Schematic diagrams for the equipment are given in this section.
SECTION 5, REPLACEABLE PARTS:
Lists the components found in the schematic diagrams and
explains how to order replacement parts.
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