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Ramsey Electronics
QAMP40 manual QAMP-40
Models:
QAMP40
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Troubleshooting
Install
Parts list
Warranty
The Ramsey Learn-As-You-Buildassembly Strategy
Your Power Supply And Rf Output Power
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QAMP-40
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Contents
40 MTR 20 WATT QRP LINEAR AMPLIFIER KIT
Ramsey Electronics Model No. QAMP40
PARTIAL LIST OF AVAILABLE KITS
40 METER QRP
CW POWER
TABLE OF CONTENTS
AMPLIFIER KIT
INTRODUCTION
HOW IT WORKS
RESISTORS
PARTS LIST FOR THE QAMP40 QRP POWER AMPLIFIER
CAPACITORS
SEMICONDUCTOR DEVICES
THE RAMSEY LEARN-AS-YOU-BUILDASSEMBLY STRATEGY
TIPS AND NOTES
CONSTRUCTION
ˆ3. Install J3, PC mount DC power jack
ˆ23. Install R5, 1 K ohm resistor brown-black-red
Transistor bend pix
19 turns through center of core
22 turns through center of core
Primary leads
Only2 turns shown for clarity,8turns are needed
Each lead is about 1”long
1” long leads 1 turn with loop then another turn
INITIAL TESTS
YOUR POWER SUPPLY AND RF OUTPUT POWER
VERIFYING TRANSMITTER RF OUTPUT
MAXIMIZING RF POWER OUTPUT
TROUBLESHOOTING HINTS
USING THE QRP POWER AMPLIFIER
ENCLOSURE RECOMMENDATIONS
PARTS LAYOUT QAMP-40POWER AMPLIFIER KIT
QAMP-40
The Ramsey Kit Warranty
QAMP-40
3.FACTORY REPAIR OF ASSEMBLED KITS
Quick Reference Page Guide
ESTIMATED ASSEMBLY
QAMP40 20 WATT LINEAR AMPLIFIER
REQUIRED TOOLS
