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HR40 manual Parts Layout
Models:
HR40
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Troubleshooting
Install
Warranty
Learn-As-You-Buildassembly Strategy
Tuning Ssb Signals
Bandspread And Tuning Range
Adding An Led Power On Indicator
INITIAL TESTING OF YOUR HR40
volume control, R3
Small in size but BIG in features
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PARTS LAYOUT:
HR40
•
10
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Page 11
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Page 9
Page 11
Contents
Ramsey Electronics Model No
Small in size but BIG in features
40 METER 7.0 MHZ ALL MODE RECEIVER KIT
HR40
RAMSEY TRANSMITTER KITS
TABLE OF CONTENTS
KIT ASSEMBLY
HR40 AMATEUR RECEIVER KIT
INTRODUCTION
RAMSEY HR-SERIESAMATEUR RECEIVERS
ABOUT DIRECT CONVERSION RECEIVERS
Circuit Description
PARTS SUPPLIED WITH THE HR40 KIT
LEARN-AS-YOU-BUILDASSEMBLY STRATEGY
HR40
PARTS LAYOUT
HR40
RECEIVER ASSEMBLY
ˆ21. Install S1, the power switch
ˆ17. Install R5, 10k ohms brown-black-orange
ˆ18. Install R2, 10k potentiometer tuning control
HR40
HR40
INITIAL TESTING OF YOUR HR40
Alignment
CW OPERATION
USING YOUR RECEIVER
TUNING SSB SIGNALS
ON THE AIR TRANS-RECEIVING
ADDING AN LED POWER ON INDICATOR
MORE AUDIO POWER - ANOTHER WAY
SPEAKER OPERATION
HR40
TROUBLESHOOTING TIPS
BANDSPREAD AND TUNING RANGE
ALTERNATE POWER SOURCES
GENERAL NOTES FOR EXPERIENCED QRP BUILDERS
FREQUENCY STABILITY
DIRECT FREQUENCY READOUT
OTHER METHODS OF DIAL CALIBRATION
THE LM386 AUDIO OUTPUT
volume control, R3
CONSTRUCTION NOTES
HR40
HR40
The Ramsey Kit Warranty
HR40
3. FACTORY REPAIR OF ASSEMBLED KITS
RAMSEY MODEL NO. HR40 AMATEUR RECEIVER KIT
