Timer counter Qty 1

Advance Timer Counter Type T.C.4, manufactured by Advance Instruments Ltd., England. A valve-based electronic frequency and time interval counter used in laboratories and service departments for measuring frequency, period and gate time. Featuring decade gate selection and numerical display tubes, it represents early digital measurement technology prior to solid-state instrumentation. 1960s.

W28 x D31 x H20 cm.

Untested.