Equipment information:

Ameritron AL-800 Amplifier
Manufacturer:
Ameritron
Model: AL-800
Date:
Category: Radio, Communication
Group: Amplifier
Description: LINEAR POWER AMPLIFIER
Information:
                                    The Ameritron AL-800 is a 1200 watt PEP output linear
amplifier that operates from 160 through
15 meters. The AL-800X and AL-800Y are export models that
operate from 160 through 10 meters.
Export modification instructions are only available with
proof of a valid amateur radio license.
The AL-800 uses a single 3CX800A7 tube in a class AB2
grounded grid circuit. High-quality
power supply and RF components combine with an accurate
peak-detecting directional coupler,
front panel adjustable true ALC circuit, electronic grid
current and thermal overload protection, and
automatic bias switching to make this the best featured and
most reliable single 3CX800A7
amplifier available. The AL-800 and AL-800Y are
factory-wired for 120 volt, 50/60 Hz ac line
voltage. The AL-800X is factory wired for 240 volt, 50/60 Hz
ac line voltage. All models are
easily converted to other supply voltages between 90 and 250
volts ac.

These manuals are available for the above equipment:

Ameritron -- AL-800 -- Service and User Manual
File name: Ameritron-5881-Manual-Page-1-Picture
Manual Type: Service and User Manual
Pages: 40
Size: 120.51 Kbytes (123399 Bytes)
Language: english
Revision:
Manual-ID/Number:
Date:
Quality: Electronic document, no scan, very well readable.
Upload date:
MD5: 3e6301245c202f48d5fa45ef83845c57
ed2kID: 242b74ca150abad6281b7eb2720eec4b
Downloads: 105 since 29 April 2014
Information:
Unpacking
Instructions....................................................................................................
1
Features
...........................................................................................................................
3
AL-800 Technical Specifications
....................................................................................
4
General Information
........................................................................................................
6
Safety
Interlock....................................................................................................
6
ALC.....................................................................................................................
6
Dynamic Bias
......................................................................................................
7
Timer - Overload Circuits
...............................................................................................
7
Grid Overload Protection
....................................................................................
7
Thermal
Overload................................................................................................
8
Cathode Warm-up
Timer.....................................................................................
8
Power Supply
..................................................................................................................
8
Heater Supply
......................................................................................................
8
Plate (HV) Supply
...............................................................................................
8
Meters.............................................................................................................................
9
Current Meter (plate and
grid):............................................................................
9
Multimeter...........................................................................................................
9
Multimeter Functions
..........................................................................................
9
Wattmeter
Circuit................................................................................................
10
Peak Envelope Power vs. Average
Power...........................................................
10
Tube Life
.........................................................................................................................
10
Export
Modifications.......................................................................................................
12
Technical Assistance
.......................................................................................................
12
Installation Guidelines and
Suggestions..........................................................................
13
Location Of The
Amplifier.................................................................................
13
Ventilation...........................................................................................................
13
Power
Connections..............................................................................................
13
Grounding............................................................................................................
14
Transformer Connections
................................................................................................
15
Jumper
Connections..............................................
.......................................................... 15
Interconnections
..............................................................................................................
15
Operating Instructions And Guidelines
...........................................................................
16
Front Panel
Controls............................................................................................
16
Driving Power
.....................................................................................................
17
Tube and Component
Life...................................................................................
18
Additional SSB Notes
.........................................................................................
18
AM (Amplitude Modulation) Operation
............................................................. 19
Audio
Distortion..................................................................................................
19
FM (Frequency Modulation), RTTY, and DIGITAL OPERATION
.................. 19
ALC Metering, Controls, and
Adjustments.....................................................................
19
ALC Metering
Functions.....................................................................................
19
ALC Controls
......................................................................................................
20
ALC
Adjustments................................................................................................
20
Rear-panel "ALC LIMIT" control
.......................................................................
21
ALC Limit Adjustment (rear panel)
....................................................................
21
"ALC SET" control
.............................................................................................
22
Tuning
.............................................................................................................................
22
QSK
Operation................................................................................................................
25
Periodic Maintenance
......................................................................................................
26
Parts
List..........................................................................................................................
27
Timer / Overload Board (50-0117-2)
..................................................................
27
Power Supply / SWR Board
(50-0800-1)............................................................
28
Meter Board (50-0800-3)
....................................................................................
29
Tuned Input Board (50-0800-2)
..........................................................................
29
AL-800 Tuned Input
Chart..................................................................................
29
AL-800 Main Chassis Parts
List..........................................................................
30
Frequency Coverage
........................................................................................................
31
Amplifier Tuning Log
.....................................................................................................
31
Notes:
..................................................................................................................
31
Schematics......................................................................................................................
32
Power Supply / SWR
Board................................................................................
32
Tuned Input
Board...............................................................................................
33
Meter
Board.........................................................................................................
34
Timer / Overload Board
......................................................................................
35
Main Chassis
.......................................................................................................
36
Ameritron-5881-Manual-Page-1-Picture
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