Geiger-Muller tube type B6
1950-1980
Type M2N Geiger-Muller tube
1978-95
Type M6 Geiger-Muller tube
1946-48
Early type HC4 Geiger-Muller tube
1946-48
Early 'Maze' type Geiger-Muller tube
1948-50
Geiger-Muller tube by Twentieth Century Electronics Ltd.
1956-1985
Type F10 Geiger-Muller tube
1950-78
Type G12 Geiger-Muller tube
1946-48
Type B12 Geiger-Muller tube
1946-48
Early version of type M6M Geiger-Muller tube
1946-53
Demountable type IG20 Geiger-Muller tube
1968
Early copper mesh cathode Geiger-Muller tube
1946-50
Type MB4H Geiger-Muller tube
1946-78
Experimental type 2P Geiger-Muller tube
1978-95
Early type SW12 side-window Geiger-Muller tube
1946-53
Early type GM5 copper cathode Geiger-Muller tube
1940-43
Type G10H side-window Geiger-Muller tube
1950-60
Gamma sensitive Geiger-Müller tube
1950-1983
All-metal end window Geiger-Muller tube assembly
1978-1995
Geiger counter type M6H (Halogen Quenched) by 20th Century Electronics
1951-1978
Type IB2 Geiger-Muller tube assembly
1978-95
Type G10 Cu Geiger-Muller tube
1946-48
Experimental type XG1 Geiger-Muller tube
1950-60
Early brass side-window radiation detector
1946-48
Early radiation detector employing Geiger-Muller tube
1942
Type G4 Pb Geiger-Muller tube
1950-60