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R-4B
DRAKE R-4B Manuals
Manuals and User Guides for DRAKE R-4B. We have
1
DRAKE R-4B manual available for free PDF download: Instruction Manual
DRAKE R-4B Instruction Manual (44 pages)
Brand:
DRAKE
| Category:
Radio
| Size: 4 MB
Table of Contents
Table of Contents
2
Specifications
5
Introduction
8
Auxiliary Equipment
8
General Description
9
General Electrical Characteristics
9
Installation
10
Unpacking
10
Locating and Mounting
10
Viewing Angle Options
11
Rear View
13
Control Functions
14
Front Panel
14
Function
14
Passband
14
A.F. Gain
15
Ssb/Cw
15
Notch
15
R.F. Gain
15
Band
16
Xtals
16
S-Meter
16
Side Panel Controls
16
Notch Adjust
17
Phone Jack
17
Inj.
17
Operation
18
Basic Control Settings
18
SSB or DSB Suppressed Carrier Reception
18
C.W. Reception
18
RTTY Reception
19
Noise Blanker
19
Dial Calibration
20
Additional Tuning Ranges
21
Fixed Frequency Operation
22
VHF Reception
22
Crystal Frequency Chart
23
Principles of Operation
24
R.F. Amplifier
24
Pre-Mixer
24
First Mixer
24
I.F. System
25
Detection Settings
25
Audio Output
25
AVC System
25
Power Supply
29
VFO Indicator Light
29
Block Diagram
29
Servicing
31
Removing Covers
31
Tube Replacement
31
Alignment Instructions
31
Voltage Chart
32
Resistance Chart
33
25 Khz Calibrator
34
50 Khz Oscillator
34
Crystal Filter and Filter Match Transformer
35
Notch Filter
37
Passband Tuner
37
Bias and S-Meter
39
Top View
40
Bottom View
41
Schematic Diagram
43
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