Set of EEL educational modules for assembly into a spectrophotometer

Made:: 1960-1979 in Halstead

Set of EEL educational modules for assembly into a spectrophotometer, a pH meter, high-sensitivity polarograph or a low-sensitivity polarograph, by Evans Electroselenium Ltd., Halstead, Essex, England, 1965-1975, comprising nine units

Details

Category:: Science Teaching

Object Number:: 1985-1527

type:: spectrophotometer

credit:: King's College, London (KQC). Centre for

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Parts

Spectrophotometer module

Spectrophotometer module, type 200 no. 1025, by EEL (Evans Electroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt1

type:: instrument component and spectrophotometer

Image ©: The Board of Trustees of the Science Museum

Polarograph module

Polarograph module, type 201 no. 1020, by EEL (Evans Electroselenium Ltd., 1965-1975

Object Number:: 1985-1527 Pt2

type:: polarograph module

pH meter module

pH meter module, type 202 no.1020, by EEL (Evans Eletroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt3

type:: ph meter

Meter module

Meter module, type 203, no.1027, by EEL (Evans Electroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt4

type:: meter module

Image ©: The Board of Trustees of the Science Museum

Current amplifier module type 204 no. 1022

Current amplifier module type 204 no. 1022, by EEL (Evans Electroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt5

type:: current amplifier

Operational amplifier module

Operational amplifier module, type 205 no. 1029, by EEL (Evans Electroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt6

type:: amplifier

Transformer module

Transformer module, type 206 no. 1025, by EEL (Evans Electroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt7

type:: transformer

Battery module

Battery module, type 207 no. 1025, by EEL (Evans Electroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt8

type:: battery

Reference Electrode for Polarograph Electrode Module in box

Exhaust liquid trap and Inlet bubbler and trap for Polarograph

Mercury reservoir and cap – 209 01 011 - for Polarograph

Polarograph electrode module

Polarograph electrode module, type 209 no.1018, by EEL (Evans Electroselenium Ltd.), 1965-1975

Object Number:: 1985-1527 Pt9

type:: polarograph electrode

Image ©: The Board of Trustees of the Science Museum

Polarograph electrode module

Polarograph electrode module, type 209 no.1018, by EEL (Evans Electroselenium Ltd.), 1965-1975

Materials:: glass , metal (unknown) and plastic (unidentified)

Object Number:: 1985-1527 Pt9/1

type:: polarograph electrode

Image ©: The Board of Trustees of the Science Museum

Part of:: 1985-1527 Pt9

Polarograph electrode module accessories

Box containing glass accessories for Polarograph electrode module. One cylindrical glass vessel with flared rim at open end. Two glass cylinders, possibly capillary rods. Writing on box exterior suggests contents are 209 01 018 = 1 Sample Cell and 209 99 001 = 2 Dropping mercury electrode, 7cm.

209 01 024/209 01 026 – Exhaust Liquid Trap is on the label taped to the box lid and written on the box exterior but this has been crossed out. The Exhaust Liquid Trap is in 1985-1527 pt9/7.

Materials:: glass

Object Number:: 1985-1527 Pt9/2

type:: polarograph electrode

Part of:: 1985-1527 Pt9

Mercury reservoir and cap for polarograph electrode module

Mercury reservoir and cap – 209 01 011 - for Polarograph Electrode Module in box. Made by EEL (Evans Electroselenium Ltd.), 1965-1975

Materials:: glass

Object Number:: 1985-1527 Pt9/3

type:: polarograph electrode

Part of:: 1985-1527 Pt9

Stopcock for Polarograph Electrode Module

Stopcock for Polarograph Electrode Module in box. EEL Catalogue number 209 01 016. Produced by EEL (Evans Eletroselenium Ltd.), 1965-1975

Materials:: glass and plastic (unidentified)

Object Number:: 1985-1527 Pt9/4

type:: stopcock

Part of:: 1985-1527 Pt9

Reference Electrode for Polarograph Electrode Module

Reference Electrode for Polarograph Electrode Module in box. EEL Catalogue number 209 01 035. Produced by EEL (Evans Eletroselenium Ltd.), 1965-1975

Materials:: metal (unknown) , glass and plastic (unidentified)

Object Number:: 1985-1527 Pt9/5

type:: electrode

Part of:: 1985-1527 Pt9

Reference Electrode for Polarograph Electrode Module

Reference Electrode for Polarograph Electrode Module in box. EEL Catalogue number 209 01 035. Produced by EEL (Evans Eletroselenium Ltd.), 1965-1975

Materials:: glass , metal (unknown) and plastic (unidentified)

Object Number:: 1985-1527 Pt9/6

type:: electrode

Part of:: 1985-1527 Pt9

Exhaust liquid trap and Inlet bubbler and trap for Polarograph Electrode Module

Exhaust liquid trap and Inlet bubbler and trap for Polarograph Electrode Module in box. Exhaust Liquid trap EEL Catalogue numbers: 209 01 024 / 209 01 026. Inlet bubbler & trap EEL Catalogue numbers: 209 01 025 / 209 01 027. Catalogue numbers written on exterior of box. Produced by EEL (Evans Eletroselenium Ltd.), 1965-1975