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Alpha 77Dx
ETO Alpha 77Dx HF Linear Amplifier Manuals
Manuals and User Guides for ETO Alpha 77Dx HF Linear Amplifier. We have
1
ETO Alpha 77Dx HF Linear Amplifier manual available for free PDF download: Operating And Technical Manual
ETO Alpha 77Dx Operating And Technical Manual (41 pages)
High Frequency Linear Power Amplifier
Brand:
ETO
| Category:
Amplifier
| Size: 6 MB
Table of Contents
Table of Contents
3
General Description
4
Specifications
4
Installation
5
Unpacking
5
Transformer Installation
5
Electrical Installation
5
Re-Connection for Operation on 110-125V Service
6
Power Cable Connections
6
Physical Location
6
RF and Control Connections
8
RF Input
8
RF Output
8
Relay
8
Simplified Alpha Antenna Switching System
9
Operation
11
Control Functions
11
Mode Control Push Buttons
11
Multimeter Push Buttons
11
Tune-Up Procedure
12
Average Plate Current
12
Meter Readings
12
Initial Tune up
13
Final Operational Adjustments and Monitoring
14
Operating Notes
15
High Power Ssb/Voice
15
Tube Ratings
16
Interlocks
16
Fuses
16
Plate Overcurrent Relay
16
Troubleshooting Hints
17
Theory of Operation
19
RF Amplifier Circuitry
19
Power Supply and Control
19
Low Voltage and Miscellaneous Circuits
20
CW Break-In System
22
Illustrations
24
Front Panel
24
Back Panel
24
Front Sub-Panel
25
Back View of Front Panel
25
Top View RF Compartment
26
Side View RF Compartment
26
Power Supply Side View
27
Power Supply Oblique View
27
Underside of Tube Deck
28
Circuit Board CB2
28
Circuit Board CB3
29
Wattmeter Circuit Board
29
Standard Electrical Parts
39
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