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E.F. Johnson Ranger User Manual

E.F. Johnson Ranger
5 pages
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OPERATIIG
MA"UAL
VIKING
RA
:NGER
TRANSMITTERLEXCITER
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E.F. Johnson Ranger Specifications

General IconGeneral
BrandE.F. Johnson
ModelRanger
CategoryTransmitter
LanguageEnglish

Summary

Viking Ranger Transmitter/Exciter Overview

Product Description and Capabilities

Introduces the Viking "Ranger" as a self-contained, TVI-suppressed transmitter/exciter for amateur bands.

Built-in VFO and Tuning Features

Details the stable built-in VFO, bandspread dial, and tuning controls for easy frequency adjustments.

TVI Shielding and Filtering

Explains the comprehensive TVI suppression measures implemented in the "Ranger" cabinet.

General Specifications and Design

Outlines key technical specifications, including VFO-exciter, crystal oscillator, and buffer stages.

Detailed Component and System Specifications

Final Amplifier and Speech-Modulator

Describes the pi-network final amplifier, speech amplifier stages, and push-pull modulators.

Power Supply and Control Systems

Details the self-contained power supplies, relay jack for control, and fuse.

Appearance and Assembly

Covers the physical design, cabinet construction, and kit assembly process.

Block and Schematic Diagrams

Crystal Chart and Band Allocation

Shows crystals usable for full output on specific amateur bands covered by the Ranger.

Block Diagram of Ranger Circuit

Illustrates the functional flow and interconnections of the Ranger's various stages.

Schematic Diagram

Provides the detailed electrical schematic for the Viking Ranger transmitter/exciter.