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R-4B
Instruction manual
DRAKE R-4B Instruction Manual
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Table Of Contents
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Contents
Table of Contents
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Table of Contents
Table of Contents
Specifications
Introduction
Auxiliary Equipment
General Description
General Electrical Characteristics
Installation
Unpacking
Locating and Mounting
Viewing Angle Options
Rear View
Control Functions
Front Panel
Function
Passband
A.F. Gain
Ssb/Cw
Notch
R.F. Gain
Band
Xtals
S-Meter
Side Panel Controls
Notch Adjust
Phone Jack
Inj.
Operation
Basic Control Settings
SSB or DSB Suppressed Carrier Reception
C.W. Reception
RTTY Reception
Noise Blanker
Dial Calibration
Additional Tuning Ranges
Fixed Frequency Operation
VHF Reception
Crystal Frequency Chart
Principles of Operation
R.F. Amplifier
Pre-Mixer
First Mixer
I.F. System
Detection Settings
Audio Output
AVC System
Power Supply
VFO Indicator Light
Block Diagram
Servicing
Removing Covers
Tube Replacement
Alignment Instructions
Voltage Chart
Resistance Chart
25 Khz Calibrator
50 Khz Oscillator
Crystal Filter and Filter Match Transformer
Notch Filter
Passband Tuner
Bias and S-Meter
Top View
Bottom View
Schematic Diagram
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