Solartron Test Unit Power Level meter, a specialised laboratory instrument designed for measuring and monitoring electrical signal power levels in decibels within communication and electronic systems. Manufactured by Solartron of Surrey, England, it was used in telecommunications workshops, research laboratories and calibration environments to set, test and measure signal strength and transmission levels with precision.
Equipment of this type formed part of standard professional electronic test benches during the expansion of post-war communications and instrumentation technology; 1950s–1960s.
