AEI

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AEI, also known as Associated Electrical Industries was a United Kingrom based Electrical engineering company which formed from Metropolitan-Vickers. They where the first company in the UK to produce Electron Microscopes.

List of Models

Transmission Electron Microscops
Model Year Accelerating Voltage Cathode Type Nr. of Condensor Lenses Nr. of Imaging Lenses Projective Resolution Successor
EM-1 1936 EM-2
EM-2 1946 50 KV EM-3
EM-3 EM-4
EM-4
EM-5 c.a 1950 500 KV EM-7 Presumably
EM-6 ca. 1968 EM-6B
EM-6M ca. 1968 80 KV (Factory selectable: 30, 40, 50, 60, 80 KV One only) Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 10 Corinth?
EM-6B ca. 1968 30, 40, 50, 60, 80 KV / (120 KV Overload) Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 3 EM-8
EM-7 1967 100 KV - 1250 KV 6 x Tungsten Hairpin in 24 Stage Cockraft Walten Accelerator 5 None
EM-8 1968 40, 60, 80 KV / (120 KV Overload) Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 3 None
EEM-801 Biologists Version of EM-8 1968 40, 60, 80 KV / (120 KV Overload) Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 5 None
EEM-802 Metallurgists Version of EM-8 ca. 1968 40, 60, 80, 100 KV / (120 KV Overload) Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 5 None
Corinth Clinical ca. 1974 60 KV Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 10 None
Corinth 275 ca. 1974 60 KV Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 8 None
Corinth 500 ca. 1974 20, 40, 60, 80 KV Tungsten Hairpin 3 Electromagnetic 3 Electromagnetic Single Polpiece 5 None
Scanning Transmission Electron Microscops
STEM-1 1975 Tungsten Hairpin None
STEM-1176 1974 Tungsten Hairpin None
X-Ray Micro Analyzers
EMMA-4 (modified EM-801) 1968 40, 60, 80 KV / (120 KV Overload) Tungsten Hairpin 2 Electromagnetic 3 Electromagnetic Single Polpiece 5 None