Electronic Navigation Industries 420LA Amplifier
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Model:
420LA
Date:
0
Category:
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Description:
BROADBAND POWER AMPLIFIER
Information
The Model 420LA is a general purpose broadband Amplifier
capable of more than 20 watts of linear power output when
driven by any laboratory signal or sweep generator from .15
to 300 MHz.
An ultra linear Class A design, the 42ÖLA will “boost" the
output of any signal source by a fiat 45 dB (± 1.5 dB) and
provide its full forward output power into any load
impedance (from an open to a short circuit), its output is a
faithful reproduction of the input waveform for AM, FM.
SSB, CATV, pulse and other complex modulations. Although
specified only over the .15 to 300 MHz frequency range, full
power output is typically available from .12 to 310 MHz.
The microwave transistors on thin film substrates,
microstrip circuitry, and plug-in modules make the 420LA
both reliable and easy to service. An integral Power Supply
and coohng system permit operation over a wide range of
temperature and AC line conditions.
Manual type:
Service and User Manual
Pages:
23
Size:
962.95 Kbytes (986059 Bytes)
Language:
english
Revision:
Manual ID:
Date:
Quality:
Scanned document, reading partly badly, partly not readable.
Upload date:
2016 01 25
MD5:
775a5f5609d2469ddb3c4bc2e72b09e2
Downloads:
403
Information
CHAPTER 1 GENERAL INFORMATION
l.! introduction
...
1
1.2 Data
Summary ...
I
CHAPTER 2 OPERATION
2.1 Introdaction ... .
... 3
2.2 Rack Installation ...
... 3
2-2.1 Mains Voltage Setting .
, ... 3
2.2.2 Mains Fuse
Rating ... 3
2.2.3 Mains Lead
Connection ... 4
2.3
Operation ... , ... 4
CHAPTER 3 TECHNICAL DESCRIPTION
3. ΐ General Description ... ...
. . . 5
CHAPTER 4 MAINTENANCE
H
4. i
introduction ...
6
4.2 Access and
Layout ... ,6
4.3 Performance
Checks ...
7
4.3.1 Initial
Check ... < ... 7
4.4 Re-alignment
Procedure ... 8
4.4.1 Measurement of Gain
... 8
4.4.2 Measurement of Harmonics ... 9
4.5 Packaging for Reshipment .
... 10
CHAPTER 5 SCHEMATIC AND PARTS LIST
ο. 1 Schematic
Diagram ... 11
5.2 Parts
List ... 11
5.3 List of
Manufacturers ... 11
5.4 Ordering Replacement
Parts ... Π