The W8EXI Wingfoot VFO Exciter
Schematic Diagrams and Circuit Descriptions:

Schematic Diagrams and Circuit Descriptions:

Final Amplifier Pi-Network

Cathode Follower

Differential/Timed Sequence Keying
Schematic and Circuit Description

1st Buffer/Multiplier

How Differential/Timed Sequence Keying Works
From Key Up to Key Down to Key Up

2nd Buffer/Multiplier

Screen Voltage Regulator And Clamp Tube

Final Amplifier

Plate Power Supply

Internal Frequency Chart

Power Supply Voltage Regulator

Remote Control

Bias Power Supply

Wingfoot VFO Exciter Pages:
Introduction and Front and Side View Photos

Power Supply, Interior, and Rear View Photos

Schematic Diagrams and Circuit Descriptions

Special Features

Block Diagram

Chassis Layout

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