University Radio Equipment RF AF OUTPUT ATTENUATOR RANGE VINTAGE TEST EQUIPMENT Valve 

we think this is likely an SOB oscillator from around 1941  www.radiomuseum.org/r/universau_university_oscillator_sob.html

Contact and inspection of goods
Please contact Tim Marshman with any questions. This item may be inspected by appointment at 9 Vernon Smith Court, Ottoway, South Australia

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