Telequipment
Telequipment (aka "TQ" in Tek-Internal abbreviation) was a British oscilloscope manufacturer, acquired by Tektronix in the early 1970s and run as a subsidiary to provide a lower-cost alternative to Tektronix' main product lines.
At the time, Tektronix made almost exclusively laboratory-grade industrial models, whereas Telequipment produced scopes designed primarily for the TV service market. As a consequence, TQ models had TV vertical and horizontal trigger settings, a feature only introduced in Tek products in the T900-series scopes (except for some 400-series and 7K-series "option 5" models).