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Spitzenberger & Spies -
SINCE 50 years fully compliant Testing solutions 

We are one of the leading manufacturers worldwide for analogue linear transistor amplifiers, AC/DC current and voltage power supplies for industrial measurement and testing systems.



Photovoltaic test systems

Automotive & Avionic test systems

Current and voltage sources

EMC test systems

Customer specific solutions



Our services extend from single amplifiers for AC and DC mains simulation to complex completely computer controlled testing and measurement systems.


We offer fully compliant testing solutions


Our customers rely on us