The Historical Microscopy Foundation has a considerable collection of very accurate Bleeker electrical equipment. This equipment was developed and produced in the Bleeker factories from the beginning of the last century until the seventies. This took place at the time when the production of analogue electrical devices went through an explosive development and there was a great need for highly accurate electrical measuring and control equipment.
The foundation presents on this site her collection, organised in three types of equipment:
We often get questions about the importance of these devices. In the the underlying text, dr. Ad Labrujere explains why this equipment is so important in the development of electronics.
We briefly discuss the operation of the equipment. A description per collection item has been added, sometimes combined with a measurement report. There are also many original documents with product specifications available (most of them in Dutch).
No results have been found.
Precision resistors, series 24000
BLEEKER
1930-1970
Transformer
BLEEKER
1935-1945
Two-decade resistance box, ebonite
BLEEKER
1939-1949
Mirror galvanometers
BLEEKER
1940-1960
Compensator, type 2165
BLEEKER
1948
Five-decade resistance box
BLEEKER
1949
Three-decade resistance box
BLEEKER
1950-1978
Compensator, type 2169
BLEEKER
1950-1960
Compensator, type 2169
BLEEKER
1950-1960
Compensator, type 2169
BLEEKER
1950-1960
Wheatstone bridge, type 51201
BLEEKER
1950-1960
Six-decade resistance box
BLEEKER
1950-1960
Four-decade resistance box, type 31480
BLEEKER
1950-1960
Two-decade resistance box
BLEEKER
1950-1960
Electric discharge instrument
BLEEKER
1950-1960
Thomson bridge, type 2183
BLEEKER
1950-1960
Diesselhorst compensator, in plexiglass
BLEEKER
1950-1960
Power control box for Diesselhorst compensator, in plexiglass
BLEEKER
1950-1960
Auxiliary box for Diesselhorst compensator, in plexiglass
BLEEKER
1950-1960
Wheatstone bridge, type 2160 LD
BLEEKER
1950-1960
Compensator
BLEEKER
1950-1960
Wheatstone bridge
BLEEKER
1950-1960
Resistor switch
BLEEKER
1950-1960
Resistor switch
BLEEKER
1950-1960
Teclu burner
BLEEKER
ca. 1950
Normal resistors
BLEEKER
1950-1960
Transformer
BLEEKER
ca. 1960
Auxiliary box for Diesselhorst compensator
BLEEKER
1955-1965
Thomson bridge, type 52431
BLEEKER
1955-1965
Auxiliary box for Diesselhorst compensator
BLEEKER
1955-1965
Compensator
BLEEKER
1955
One-decade resistance box
BLEEKER
1956
Normal resistors
BLEEKER
1950-1975
Normal resistors
HUYSER
1953-1980
Two-decade resistance box
HUYSER
1979