"The Restoration of Valved HF Communications Receivers"

A book by Chris Parry, BSc, G8JFJ

Introduction

Chris Parry has been an enthusiastic collector and restorer of valve radios of all types for many years, and has worked for UK companies that manufactured communications receivers. He is keen to pass on some of his experience to others wishing to restore complex valve radios and so has written copious notes on all aspects of the topic in an e-book format. Much of the material is, of course, relevant to restoring any type of radio.

He wants the book to be freely available to anyone interested so that as much equipment as possible can be retained in good working order for the future.

You may download the book from this site on the condition that it is not sold or used for commercial purposes, not posted on another web site, is not altered and if extracts are published, due acknowledgement of the author is made. Because this book is updated from time to time, anyone feeling it to be useful is welcome to post a link to this site so that the latest version is always accessed.

Chris welcomes suggestions and comments about the book and enjoys helping fellow enthusiasts. He can be contacted by phone or through the email address below.

The Book

The book contains 96 pages of text and is in Acrobat PDF format file, 600kb in size. It may be updated from time to time. A selection of photographs will be added shortly. The main sections cover

Introduction

Chassis and Mechanics

Switches, Turrets and Coil Packs

Wound Components and Wiring

Thermionic and other Active Components

Passive Components

Faultfinding and Realignment

Permeability Tuned Radios

Performance Benchmarks

EMC Considerations

Details of individual radios

Photographs (not yet available)

Publication History
8/7/2005 - Original edition - 91 pages
23/7/2005 - Second release - 96 pages