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Re-edited by PD2MRX for adobe acrobat, 2004-2005.
PA2MRX, from 2006.
THE "AVO"
VALVE TESTER Type 160
NSN: 6625-99-943-2419
WORKING INSTRUCTIONS
SECOND EDITION
PUBLISHED BY
AVO LIMITED.
AVOCET HOUSE, 92-96 VAUXHALL BRIDGE ROAD, LONDON, S.W.1
Telephone: VICtoria 3404-9
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THE "AVO" VALVE TESTER TYPE 160.
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FOREWORD
For more then a quarter of a century we have been engaged in the design and
manufacture of "AVO" Electric Measuring Instruments. Throughout that time we have
consistently pioneered the design of modern multi-range instruments and have kept abreast
of and catered for the requirements of the epoch-making developments in the field of radio
and electronics.
The success of our steadfast policy of maintaining high standards of performance in
instruments of unexcelled accuracy, and making such instruments available at reasonable
cost, is reflected in the great respect and genuine goodwill which "AVO" products enjoy in
every part of the world.
It has been gratifying to note the large numbers of instances where the satisfaction
obtained from the performance of one of our instruments has led to the automatic choice of
other instruments from the "AVO" range. This process, having continued over a long
period of years, has resulted in virtual standardization on our products by numerous Public
Bodies, The Services, Railway Systems, and Post Office and Telegraph Undertakings
throughout the world.
Our designers have thereby been encouraged to ensure that new instruments or
accessories for inclusion in the "AVO" range fit in with existing "AVO" apparatus and
serve to extend the usefulness of instruments already in use. Thus, the user who
standardizes on "AVO" products will seldom find himself short of essential measuring
equipment, for, be means of suitable accessories, his existing equipment can aften be
adapted to meet unusual demands.
It is with pleasure that we acknowledge that the unique position by "AVO" is due in no
small measure to the co-operation of so many users who stimulate our research and
Development staffs from time to time with suggestions, criticism, and even requests for the
production of entirely new instruments or accessories. It is our desire to encourage and
preserve this relationship between those who use "AVO" instruments and those who are
responsible for their design and manufacture, and correspondence is therefore welcomed,
whilst suggestions will receive prompt and sympathetic consideration
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THE "AVO" VALVE TESTER TYPE 160
CONTENTS
Page
Summery of Data .. .. .. .. .. .. .. .. .. .. .. 5
CHAPTER 1 TECHNICAL DESCRIPTION
1 Introduction .. .. .. .. .. .. .. .. 7
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