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Manuals
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ETO Manuals
Amplifier
Alpha 77Dx
Operating and technical manual
ETO Alpha 77Dx Operating And Technical Manual
High frequency linear power amplifier
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
General Description
Specifications
Installation
Unpacking
Transformer Installation
Electrical Installation
Re-Connection for Operation on 110-125V Service
Power Cable Connections
Physical Location
RF and Control Connections
RF Input
RF Output
Relay
Simplified Alpha Antenna Switching System
Operation
Control Functions
Mode Control Push Buttons
Multimeter Push Buttons
Tune-Up Procedure
Average Plate Current
Meter Readings
Initial Tune up
Final Operational Adjustments and Monitoring
Operating Notes
High Power Ssb/Voice
Tube Ratings
Interlocks
Fuses
Plate Overcurrent Relay
Troubleshooting Hints
Theory of Operation
RF Amplifier Circuitry
Power Supply and Control
Low Voltage and Miscellaneous Circuits
CW Break-In System
Illustrations
Front Panel
Back Panel
Front Sub-Panel
Back View of Front Panel
Top View RF Compartment
Side View RF Compartment
Power Supply Side View
Power Supply Oblique View
Underside of Tube Deck
Circuit Board CB2
Circuit Board CB3
Wattmeter Circuit Board
Standard Electrical Parts
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Summary of Contents for ETO Alpha 77Dx
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Alpha 77sx
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