General Information

Serial #

31064

Part Number

1

Total Parts

1

AKA

N/A

Patents

N/A

General Description

WOOD CASING WITH METAL TOP/ GLASS WINDOW/ SYNTHETIC KNOBS/ METAL WIRE/ PAPER LABEL

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

18.0 cm

Width

9.1 cm

Height

8.0 cm

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Energy-electric

Category

Measurement

Sub-Category

N/A

Manufacturer

AKA

Deuta Werke

Country

Germany

State/Province

Unknown

City

Berlin

Context

Country

Canada

State/Province

Ontario

Period

Unknown

Canada

EXAMPLE OF EQUIPMENT USED AT LARGEST RESEARCH INSTITUTION IN CANADA DURING PERIOD OF ITS MOST RAPID GROWTH, GREATEST PRODUCTIVITY & DURING WHICH IT DEVELOPED WORLD RENOWNED REPUTATION.

Function

INSTRUMENT FOR DETECTING EXISTENCE & DETERMINING STRENGTH OF SMALL ELECTRICAL CURRENTS, BY MEASURING MECHANICAL MOTION DERIVED FROM ELECTROMAGNETIC OR ELECTRODYNAMIC FORCES PRODUCED BY THE CURRENT.

Technical

ANCESTORS OF MOVING COIL INSTRUMENTSWERE 'SIPHON RECORDER' DEV'D BY WILLIAM THOMSON (1867) FOR TELEGRAPH INDUSTRY & 'FISHBONE GALVANOMETER' INVENTED BY MARCEL DEPREZ (1880). JACQUES D'ARSONVAL SUGGESTED FIXING 'FISHBONE' IN DEPREZ'S INSTRUMENT & MAKING ITS COIL MOVEABLE... (COMPLETE WS IN O:DRIVE SUPP.INFO.)

Area Notes

Unknown

Details

Markings

PLATE ON TOP READS ""Nadir"/ Deuta-Werke G.m.b.H./ Type 7 Berlin S.O. 36 No 31964"/ BLACK LETTERING ON DIAL FACE READS "Galvanometer/ 1 Skalenteil=0,00000062 Amp./ Widerstand 74 Ohm." WITH BLACK SCALE MARKINGS FOR 0 TO 80/ PAPER LABEL ON BACK WITH WARRANTY INFORMATION & READING "NADIR" Abteilung der Deute-Werke/ Berlin S.O. 36"

Missing

RUBBER PADS FROM FEET From CA of 01/30/2002 by Matthew Bruce: No - appears complete

Finish

CLEAR COATING ON BROWN WOOD/ GLOSSY BLACK PAINTED TOP/ COLOURLESS, TRANSPARENT GLASS/ WHITE DIAL WITH MIRRORED SECTION/ BLACK SYNTHETIC & PLATED KNOBS

Decoration

N/A