Voltcraft fixed voltage linear power supply bench voltcraft fsp 1134 the voltcraft fsp 1134 is a 55w fixed voltage linear power supply suitable for use in laboratories workshops and industry the fsp 1134 is electronically regulated and produces 138v dc and 4a with a current limiter its steel plate enclosure makes the fsp 1134 suitable for use even in demanding industrial conditions voltcraft fsp 1134 4a fixed voltage power supply