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Heathkit DX-60 User Manual

Heathkit DX-60
32 pages
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Heathkit DX-60 Specifications

General IconGeneral
Frequency Range80, 40, 20, 15, 10 meters
ModesCW
Tube lineup12AX7
Output impedance50 ohms
Power requirements117 VAC
Weight25 lbs
Power Output60 watts

Summary

Specifications

Introduction

Circuit Description

Oscillator

Describes the operation of the oscillator stage (V1) as a modified Pierce crystal oscillator or VFO buffer.

Driver

Details the function of the V2 stage, tuned for operating frequency and controlled by DRIVE LEVEL.

Final Amplifier

Explains the V3 stage as a shunt-fed, neutralized amplifier with a tank circuit and low-pass filter.

Modulator Wiring

Oscillator Wiring

Final Amplifier Wiring

General Chassis Assembly

Power Supply Wiring

Top of Chassis Assembly

Final Wiring

Low-Pass Filter Assembly

Proper Soldering Techniques

Chassis Wiring and Soldering

Parts List

Speech Amplifier

Modulation

Power Supply

Grid Block Keying

Key-Up

Explains the negative grid voltage state that prevents transmitter output.

Key-Down

Describes how bias is removed from tubes for transmitter output.

Initial Test and Adjustment

Neutralization Adjustment

Operating Instructions for CW or AM

Operating Reminders

Operation

Antennas

Discusses compatible antenna types and impedance matching for the pi network.

Operation with Crystals

Guides on selecting and using crystals for different band frequencies.

Operation with VFO

Explains connecting and using an external VFO with the transmitter.

Final Assembly

Service Information

Power Supply

Outlines checks for power supply voltages and potential issues.

In Case of Difficulty

Replacements

Shipping Instructions

Warranty

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