RSGB
Foreword and Copyright
FOREWORD
It is hoped that this booklet will meet the need for a source of
information on the commercial equivalents and the manufacturers of the
numerous CV coded valves, cathode ray tubes and semiconductor devices
now available to the radio amateur.
The opportunity has been taken in this Edition to correct a few errors
which appeared in previous Editions and to add a large number of new
types which have appeared recently.
A revised system of coding the valve classification has been introduced
which it is believed will be found simpler to use and increase the
usefulness of the booklet. Certain of the older types have been added to
the lists to make the information more complete but valve types which are
unlikely to be used by the average amateur have been omitted.
The CV lists are Crown Copyright reserved and are reproduced by
permission of the Controller, H.M. Stationery Office.
G.R.J.
Compiled by: G. R. JESSOP, AMIERE, G6JP
General Editor: John A. Rouse, G2AHL
Copyright 1967 RADIO SOCIETY OF GREAT BRITAIN
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