Townshend had been using Sound City amplifiers since mid 1967, and Entwistle since earlier that year, when in late 1968 they approached the company asking if their equipment could be modified slightly.
Townshend had been using Sound City amplifiers since mid 1967. Townshend had been Entwistle since earlier that year. They approached the company. This was in late 1968. If their equipment could be modified slightly. This was what they was asking in late 1968.