Shelfmark

Hrs.11

Maker

Philip Harris Ltd.

Subjects

electrical (resistance box)

Title

Certificate of Test of Resistance Box

Description

Certificate of test of a resistance box, catalogue no. 7172, instrument no. 4860, reference Wks. 24459.
List of resistance in ohms of various coils tested at 17 degrees celsius.
Resistance of box, all plugs in = 0.002 ohms.

Earliest Date

Latest Date

Pages

1

Address

Birmingham, England

Other Makers

Cat no

7127 (Inst. No. 4860), reference Wks.224459

Contents List

Hardback

Prices

Index

Illustrations

General Ref